File: fpdf.go

package info (click to toggle)
golang-github-jung-kurt-gofpdf 2.17.2%2Bds-3
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, bullseye, sid
  • size: 2,368 kB
  • sloc: makefile: 51; awk: 7
file content (4998 lines) | stat: -rw-r--r-- 150,253 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
/*
 * Copyright (c) 2013-2014 Kurt Jung (Gmail: kurt.w.jung)
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

package gofpdf

// Version: 1.7
// Date:    2011-06-18
// Author:  Olivier PLATHEY
// Port to Go: Kurt Jung, 2013-07-15

import (
	"bytes"
	"encoding/binary"
	"encoding/json"
	"fmt"
	"image"
	"image/color"
	"image/gif"
	"image/jpeg"
	"image/png"
	"io"
	"io/ioutil"
	"math"
	"os"
	"path"
	"sort"
	"strconv"
	"strings"
	"time"
)

var gl struct {
	catalogSort  bool
	noCompress   bool // Initial zero value indicates compression
	creationDate time.Time
	modDate      time.Time
}

type fmtBuffer struct {
	bytes.Buffer
}

func (b *fmtBuffer) printf(fmtStr string, args ...interface{}) {
	b.Buffer.WriteString(fmt.Sprintf(fmtStr, args...))
}

func fpdfNew(orientationStr, unitStr, sizeStr, fontDirStr string, size SizeType) (f *Fpdf) {
	f = new(Fpdf)
	if orientationStr == "" {
		orientationStr = "p"
	} else {
		orientationStr = strings.ToLower(orientationStr)
	}
	if unitStr == "" {
		unitStr = "mm"
	}
	if sizeStr == "" {
		sizeStr = "A4"
	}
	if fontDirStr == "" {
		fontDirStr = "."
	}
	f.page = 0
	f.n = 2
	f.pages = make([]*bytes.Buffer, 0, 8)
	f.pages = append(f.pages, bytes.NewBufferString("")) // pages[0] is unused (1-based)
	f.pageSizes = make(map[int]SizeType)
	f.pageBoxes = make(map[int]map[string]PageBox)
	f.defPageBoxes = make(map[string]PageBox)
	f.state = 0
	f.fonts = make(map[string]fontDefType)
	f.fontFiles = make(map[string]fontFileType)
	f.diffs = make([]string, 0, 8)
	f.templates = make(map[string]Template)
	f.templateObjects = make(map[string]int)
	f.importedObjs = make(map[string][]byte, 0)
	f.importedObjPos = make(map[string]map[int]string, 0)
	f.importedTplObjs = make(map[string]string)
	f.importedTplIDs = make(map[string]int, 0)
	f.images = make(map[string]*ImageInfoType)
	f.pageLinks = make([][]linkType, 0, 8)
	f.pageLinks = append(f.pageLinks, make([]linkType, 0, 0)) // pageLinks[0] is unused (1-based)
	f.links = make([]intLinkType, 0, 8)
	f.links = append(f.links, intLinkType{}) // links[0] is unused (1-based)
	f.pageAttachments = make([][]annotationAttach, 0, 8)
	f.pageAttachments = append(f.pageAttachments, []annotationAttach{}) //
	f.aliasMap = make(map[string]string)
	f.inHeader = false
	f.inFooter = false
	f.lasth = 0
	f.fontFamily = ""
	f.fontStyle = ""
	f.SetFontSize(12)
	f.underline = false
	f.strikeout = false
	f.setDrawColor(0, 0, 0)
	f.setFillColor(0, 0, 0)
	f.setTextColor(0, 0, 0)
	f.colorFlag = false
	f.ws = 0
	f.fontpath = fontDirStr
	// Core fonts
	f.coreFonts = map[string]bool{
		"courier":      true,
		"helvetica":    true,
		"times":        true,
		"symbol":       true,
		"zapfdingbats": true,
	}
	// Scale factor
	switch unitStr {
	case "pt", "point":
		f.k = 1.0
	case "mm":
		f.k = 72.0 / 25.4
	case "cm":
		f.k = 72.0 / 2.54
	case "in", "inch":
		f.k = 72.0
	default:
		f.err = fmt.Errorf("incorrect unit %s", unitStr)
		return
	}
	f.unitStr = unitStr
	// Page sizes
	f.stdPageSizes = make(map[string]SizeType)
	f.stdPageSizes["a3"] = SizeType{841.89, 1190.55}
	f.stdPageSizes["a4"] = SizeType{595.28, 841.89}
	f.stdPageSizes["a5"] = SizeType{420.94, 595.28}
	f.stdPageSizes["a6"] = SizeType{297.64, 420.94}
	f.stdPageSizes["a2"] = SizeType{1190.55, 1683.78}
	f.stdPageSizes["a1"] = SizeType{1683.78, 2383.94}
	f.stdPageSizes["letter"] = SizeType{612, 792}
	f.stdPageSizes["legal"] = SizeType{612, 1008}
	f.stdPageSizes["tabloid"] = SizeType{792, 1224}
	if size.Wd > 0 && size.Ht > 0 {
		f.defPageSize = size
	} else {
		f.defPageSize = f.getpagesizestr(sizeStr)
		if f.err != nil {
			return
		}
	}
	f.curPageSize = f.defPageSize
	// Page orientation
	switch orientationStr {
	case "p", "portrait":
		f.defOrientation = "P"
		f.w = f.defPageSize.Wd
		f.h = f.defPageSize.Ht
		// dbg("Assign h: %8.2f", f.h)
	case "l", "landscape":
		f.defOrientation = "L"
		f.w = f.defPageSize.Ht
		f.h = f.defPageSize.Wd
	default:
		f.err = fmt.Errorf("incorrect orientation: %s", orientationStr)
		return
	}
	f.curOrientation = f.defOrientation
	f.wPt = f.w * f.k
	f.hPt = f.h * f.k
	// Page margins (1 cm)
	margin := 28.35 / f.k
	f.SetMargins(margin, margin, margin)
	// Interior cell margin (1 mm)
	f.cMargin = margin / 10
	// Line width (0.2 mm)
	f.lineWidth = 0.567 / f.k
	// 	Automatic page break
	f.SetAutoPageBreak(true, 2*margin)
	// Default display mode
	f.SetDisplayMode("default", "default")
	if f.err != nil {
		return
	}
	f.acceptPageBreak = func() bool {
		return f.autoPageBreak
	}
	// Enable compression
	f.SetCompression(!gl.noCompress)
	f.spotColorMap = make(map[string]spotColorType)
	f.blendList = make([]blendModeType, 0, 8)
	f.blendList = append(f.blendList, blendModeType{}) // blendList[0] is unused (1-based)
	f.blendMap = make(map[string]int)
	f.blendMode = "Normal"
	f.alpha = 1
	f.gradientList = make([]gradientType, 0, 8)
	f.gradientList = append(f.gradientList, gradientType{}) // gradientList[0] is unused
	// Set default PDF version number
	f.pdfVersion = "1.3"
	f.SetProducer("FPDF "+cnFpdfVersion, true)
	f.layerInit()
	f.catalogSort = gl.catalogSort
	f.creationDate = gl.creationDate
	f.modDate = gl.modDate
	f.userUnderlineThickness = 1
	return
}

// NewCustom returns a pointer to a new Fpdf instance. Its methods are
// subsequently called to produce a single PDF document. NewCustom() is an
// alternative to New() that provides additional customization. The PageSize()
// example demonstrates this method.
func NewCustom(init *InitType) (f *Fpdf) {
	return fpdfNew(init.OrientationStr, init.UnitStr, init.SizeStr, init.FontDirStr, init.Size)
}

// New returns a pointer to a new Fpdf instance. Its methods are subsequently
// called to produce a single PDF document.
//
// orientationStr specifies the default page orientation. For portrait mode,
// specify "P" or "Portrait". For landscape mode, specify "L" or "Landscape".
// An empty string will be replaced with "P".
//
// unitStr specifies the unit of length used in size parameters for elements
// other than fonts, which are always measured in points. Specify "pt" for
// point, "mm" for millimeter, "cm" for centimeter, or "in" for inch. An empty
// string will be replaced with "mm".
//
// sizeStr specifies the page size. Acceptable values are "A3", "A4", "A5",
// "Letter", "Legal", or "Tabloid". An empty string will be replaced with "A4".
//
// fontDirStr specifies the file system location in which font resources will
// be found. An empty string is replaced with ".". This argument only needs to
// reference an actual directory if a font other than one of the core
// fonts is used. The core fonts are "courier", "helvetica" (also called
// "arial"), "times", and "zapfdingbats" (also called "symbol").
func New(orientationStr, unitStr, sizeStr, fontDirStr string) (f *Fpdf) {
	return fpdfNew(orientationStr, unitStr, sizeStr, fontDirStr, SizeType{0, 0})
}

// Ok returns true if no processing errors have occurred.
func (f *Fpdf) Ok() bool {
	return f.err == nil
}

// Err returns true if a processing error has occurred.
func (f *Fpdf) Err() bool {
	return f.err != nil
}

// ClearError unsets the internal Fpdf error. This method should be used with
// care, as an internal error condition usually indicates an unrecoverable
// problem with the generation of a document. It is intended to deal with cases
// in which an error is used to select an alternate form of the document.
func (f *Fpdf) ClearError() {
	f.err = nil
}

// SetErrorf sets the internal Fpdf error with formatted text to halt PDF
// generation; this may facilitate error handling by application. If an error
// condition is already set, this call is ignored.
//
// See the documentation for printing in the standard fmt package for details
// about fmtStr and args.
func (f *Fpdf) SetErrorf(fmtStr string, args ...interface{}) {
	if f.err == nil {
		f.err = fmt.Errorf(fmtStr, args...)
	}
}

// String satisfies the fmt.Stringer interface and summarizes the Fpdf
// instance.
func (f *Fpdf) String() string {
	return "Fpdf " + cnFpdfVersion
}

// SetError sets an error to halt PDF generation. This may facilitate error
// handling by application. See also Ok(), Err() and Error().
func (f *Fpdf) SetError(err error) {
	if f.err == nil && err != nil {
		f.err = err
	}
}

// Error returns the internal Fpdf error; this will be nil if no error has occurred.
func (f *Fpdf) Error() error {
	return f.err
}

// GetPageSize returns the current page's width and height. This is the paper's
// size. To compute the size of the area being used, subtract the margins (see
// GetMargins()).
func (f *Fpdf) GetPageSize() (width, height float64) {
	width = f.w
	height = f.h
	return
}

// GetMargins returns the left, top, right, and bottom margins. The first three
// are set with the SetMargins() method. The bottom margin is set with the
// SetAutoPageBreak() method.
func (f *Fpdf) GetMargins() (left, top, right, bottom float64) {
	left = f.lMargin
	top = f.tMargin
	right = f.rMargin
	bottom = f.bMargin
	return
}

// SetMargins defines the left, top and right margins. By default, they equal 1
// cm. Call this method to change them. If the value of the right margin is
// less than zero, it is set to the same as the left margin.
func (f *Fpdf) SetMargins(left, top, right float64) {
	f.lMargin = left
	f.tMargin = top
	if right < 0 {
		right = left
	}
	f.rMargin = right
}

// SetLeftMargin defines the left margin. The method can be called before
// creating the first page. If the current abscissa gets out of page, it is
// brought back to the margin.
func (f *Fpdf) SetLeftMargin(margin float64) {
	f.lMargin = margin
	if f.page > 0 && f.x < margin {
		f.x = margin
	}
}

// GetCellMargin returns the cell margin. This is the amount of space before
// and after the text within a cell that's left blank, and is in units passed
// to New(). It defaults to 1mm.
func (f *Fpdf) GetCellMargin() float64 {
	return f.cMargin
}

// SetCellMargin sets the cell margin. This is the amount of space before and
// after the text within a cell that's left blank, and is in units passed to
// New().
func (f *Fpdf) SetCellMargin(margin float64) {
	f.cMargin = margin
}

// SetPageBoxRec sets the page box for the current page, and any following
// pages. Allowable types are trim, trimbox, crop, cropbox, bleed, bleedbox,
// art and artbox box types are case insensitive. See SetPageBox() for a method
// that specifies the coordinates and extent of the page box individually.
func (f *Fpdf) SetPageBoxRec(t string, pb PageBox) {
	switch strings.ToLower(t) {
	case "trim":
		fallthrough
	case "trimbox":
		t = "TrimBox"
	case "crop":
		fallthrough
	case "cropbox":
		t = "CropBox"
	case "bleed":
		fallthrough
	case "bleedbox":
		t = "BleedBox"
	case "art":
		fallthrough
	case "artbox":
		t = "ArtBox"
	default:
		f.err = fmt.Errorf("%s is not a valid page box type", t)
		return
	}

	pb.X = pb.X * f.k
	pb.Y = pb.Y * f.k
	pb.Wd = (pb.Wd * f.k) + pb.X
	pb.Ht = (pb.Ht * f.k) + pb.Y

	if f.page > 0 {
		f.pageBoxes[f.page][t] = pb
	}

	// always override. page defaults are supplied in addPage function
	f.defPageBoxes[t] = pb
}

// SetPageBox sets the page box for the current page, and any following pages.
// Allowable types are trim, trimbox, crop, cropbox, bleed, bleedbox, art and
// artbox box types are case insensitive.
func (f *Fpdf) SetPageBox(t string, x, y, wd, ht float64) {
	f.SetPageBoxRec(t, PageBox{SizeType{Wd: wd, Ht: ht}, PointType{X: x, Y: y}})
}

// SetPage sets the current page to that of a valid page in the PDF document.
// pageNum is one-based. The SetPage() example demonstrates this method.
func (f *Fpdf) SetPage(pageNum int) {
	if (pageNum > 0) && (pageNum < len(f.pages)) {
		f.page = pageNum
	}
}

// PageCount returns the number of pages currently in the document. Since page
// numbers in gofpdf are one-based, the page count is the same as the page
// number of the current last page.
func (f *Fpdf) PageCount() int {
	return len(f.pages) - 1
}

// SetFontLocation sets the location in the file system of the font and font
// definition files.
func (f *Fpdf) SetFontLocation(fontDirStr string) {
	f.fontpath = fontDirStr
}

// SetFontLoader sets a loader used to read font files (.json and .z) from an
// arbitrary source. If a font loader has been specified, it is used to load
// the named font resources when AddFont() is called. If this operation fails,
// an attempt is made to load the resources from the configured font directory
// (see SetFontLocation()).
func (f *Fpdf) SetFontLoader(loader FontLoader) {
	f.fontLoader = loader
}

// SetHeaderFuncMode sets the function that lets the application render the
// page header. See SetHeaderFunc() for more details. The value for homeMode
// should be set to true to have the current position set to the left and top
// margin after the header function is called.
func (f *Fpdf) SetHeaderFuncMode(fnc func(), homeMode bool) {
	f.headerFnc = fnc
	f.headerHomeMode = homeMode
}

// SetHeaderFunc sets the function that lets the application render the page
// header. The specified function is automatically called by AddPage() and
// should not be called directly by the application. The implementation in Fpdf
// is empty, so you have to provide an appropriate function if you want page
// headers. fnc will typically be a closure that has access to the Fpdf
// instance and other document generation variables.
//
// A header is a convenient place to put background content that repeats on
// each page such as a watermark. When this is done, remember to reset the X
// and Y values so the normal content begins where expected. Including a
// watermark on each page is demonstrated in the example for TransformRotate.
//
// This method is demonstrated in the example for AddPage().
func (f *Fpdf) SetHeaderFunc(fnc func()) {
	f.headerFnc = fnc
}

// SetFooterFunc sets the function that lets the application render the page
// footer. The specified function is automatically called by AddPage() and
// Close() and should not be called directly by the application. The
// implementation in Fpdf is empty, so you have to provide an appropriate
// function if you want page footers. fnc will typically be a closure that has
// access to the Fpdf instance and other document generation variables. See
// SetFooterFuncLpi for a similar function that passes a last page indicator.
//
// This method is demonstrated in the example for AddPage().
func (f *Fpdf) SetFooterFunc(fnc func()) {
	f.footerFnc = fnc
	f.footerFncLpi = nil
}

// SetFooterFuncLpi sets the function that lets the application render the page
// footer. The specified function is automatically called by AddPage() and
// Close() and should not be called directly by the application. It is passed a
// boolean that is true if the last page of the document is being rendered. The
// implementation in Fpdf is empty, so you have to provide an appropriate
// function if you want page footers. fnc will typically be a closure that has
// access to the Fpdf instance and other document generation variables.
func (f *Fpdf) SetFooterFuncLpi(fnc func(lastPage bool)) {
	f.footerFncLpi = fnc
	f.footerFnc = nil
}

// SetTopMargin defines the top margin. The method can be called before
// creating the first page.
func (f *Fpdf) SetTopMargin(margin float64) {
	f.tMargin = margin
}

// SetRightMargin defines the right margin. The method can be called before
// creating the first page.
func (f *Fpdf) SetRightMargin(margin float64) {
	f.rMargin = margin
}

// GetAutoPageBreak returns true if automatic pages breaks are enabled, false
// otherwise. This is followed by the triggering limit from the bottom of the
// page. This value applies only if automatic page breaks are enabled.
func (f *Fpdf) GetAutoPageBreak() (auto bool, margin float64) {
	auto = f.autoPageBreak
	margin = f.bMargin
	return
}

// SetAutoPageBreak enables or disables the automatic page breaking mode. When
// enabling, the second parameter is the distance from the bottom of the page
// that defines the triggering limit. By default, the mode is on and the margin
// is 2 cm.
func (f *Fpdf) SetAutoPageBreak(auto bool, margin float64) {
	f.autoPageBreak = auto
	f.bMargin = margin
	f.pageBreakTrigger = f.h - margin
}

// SetDisplayMode sets advisory display directives for the document viewer.
// Pages can be displayed entirely on screen, occupy the full width of the
// window, use real size, be scaled by a specific zooming factor or use viewer
// default (configured in the Preferences menu of Adobe Reader). The page
// layout can be specified so that pages are displayed individually or in
// pairs.
//
// zoomStr can be "fullpage" to display the entire page on screen, "fullwidth"
// to use maximum width of window, "real" to use real size (equivalent to 100%
// zoom) or "default" to use viewer default mode.
//
// layoutStr can be "single" (or "SinglePage") to display one page at once,
// "continuous" (or "OneColumn") to display pages continuously, "two" (or
// "TwoColumnLeft") to display two pages on two columns with odd-numbered pages
// on the left, or "TwoColumnRight" to display two pages on two columns with
// odd-numbered pages on the right, or "TwoPageLeft" to display pages two at a
// time with odd-numbered pages on the left, or "TwoPageRight" to display pages
// two at a time with odd-numbered pages on the right, or "default" to use
// viewer default mode.
func (f *Fpdf) SetDisplayMode(zoomStr, layoutStr string) {
	if f.err != nil {
		return
	}
	if layoutStr == "" {
		layoutStr = "default"
	}
	switch zoomStr {
	case "fullpage", "fullwidth", "real", "default":
		f.zoomMode = zoomStr
	default:
		f.err = fmt.Errorf("incorrect zoom display mode: %s", zoomStr)
		return
	}
	switch layoutStr {
	case "single", "continuous", "two", "default", "SinglePage", "OneColumn",
		"TwoColumnLeft", "TwoColumnRight", "TwoPageLeft", "TwoPageRight":
		f.layoutMode = layoutStr
	default:
		f.err = fmt.Errorf("incorrect layout display mode: %s", layoutStr)
		return
	}
}

// SetDefaultCompression controls the default setting of the internal
// compression flag. See SetCompression() for more details. Compression is on
// by default.
func SetDefaultCompression(compress bool) {
	gl.noCompress = !compress
}

// SetCompression activates or deactivates page compression with zlib. When
// activated, the internal representation of each page is compressed, which
// leads to a compression ratio of about 2 for the resulting document.
// Compression is on by default.
func (f *Fpdf) SetCompression(compress bool) {
	f.compress = compress
}

// SetProducer defines the producer of the document. isUTF8 indicates if the string
// is encoded in ISO-8859-1 (false) or UTF-8 (true).
func (f *Fpdf) SetProducer(producerStr string, isUTF8 bool) {
	if isUTF8 {
		producerStr = utf8toutf16(producerStr)
	}
	f.producer = producerStr
}

// SetTitle defines the title of the document. isUTF8 indicates if the string
// is encoded in ISO-8859-1 (false) or UTF-8 (true).
func (f *Fpdf) SetTitle(titleStr string, isUTF8 bool) {
	if isUTF8 {
		titleStr = utf8toutf16(titleStr)
	}
	f.title = titleStr
}

// SetSubject defines the subject of the document. isUTF8 indicates if the
// string is encoded in ISO-8859-1 (false) or UTF-8 (true).
func (f *Fpdf) SetSubject(subjectStr string, isUTF8 bool) {
	if isUTF8 {
		subjectStr = utf8toutf16(subjectStr)
	}
	f.subject = subjectStr
}

// SetAuthor defines the author of the document. isUTF8 indicates if the string
// is encoded in ISO-8859-1 (false) or UTF-8 (true).
func (f *Fpdf) SetAuthor(authorStr string, isUTF8 bool) {
	if isUTF8 {
		authorStr = utf8toutf16(authorStr)
	}
	f.author = authorStr
}

// SetKeywords defines the keywords of the document. keywordStr is a
// space-delimited string, for example "invoice August". isUTF8 indicates if
// the string is encoded
func (f *Fpdf) SetKeywords(keywordsStr string, isUTF8 bool) {
	if isUTF8 {
		keywordsStr = utf8toutf16(keywordsStr)
	}
	f.keywords = keywordsStr
}

// SetCreator defines the creator of the document. isUTF8 indicates if the
// string is encoded in ISO-8859-1 (false) or UTF-8 (true).
func (f *Fpdf) SetCreator(creatorStr string, isUTF8 bool) {
	if isUTF8 {
		creatorStr = utf8toutf16(creatorStr)
	}
	f.creator = creatorStr
}

// SetXmpMetadata defines XMP metadata that will be embedded with the document.
func (f *Fpdf) SetXmpMetadata(xmpStream []byte) {
	f.xmp = xmpStream
}

// AliasNbPages defines an alias for the total number of pages. It will be
// substituted as the document is closed. An empty string is replaced with the
// string "{nb}".
//
// See the example for AddPage() for a demonstration of this method.
func (f *Fpdf) AliasNbPages(aliasStr string) {
	if aliasStr == "" {
		aliasStr = "{nb}"
	}
	f.aliasNbPagesStr = aliasStr
}

// RTL enables right-to-left mode
func (f *Fpdf) RTL() {
	f.isRTL = true
}

// LTR disables right-to-left mode
func (f *Fpdf) LTR() {
	f.isRTL = false
}

// open begins a document
func (f *Fpdf) open() {
	f.state = 1
}

// Close terminates the PDF document. It is not necessary to call this method
// explicitly because Output(), OutputAndClose() and OutputFileAndClose() do it
// automatically. If the document contains no page, AddPage() is called to
// prevent the generation of an invalid document.
func (f *Fpdf) Close() {
	if f.err == nil {
		if f.clipNest > 0 {
			f.err = fmt.Errorf("clip procedure must be explicitly ended")
		} else if f.transformNest > 0 {
			f.err = fmt.Errorf("transformation procedure must be explicitly ended")
		}
	}
	if f.err != nil {
		return
	}
	if f.state == 3 {
		return
	}
	if f.page == 0 {
		f.AddPage()
		if f.err != nil {
			return
		}
	}
	// Page footer
	f.inFooter = true
	if f.footerFnc != nil {
		f.footerFnc()
	} else if f.footerFncLpi != nil {
		f.footerFncLpi(true)
	}
	f.inFooter = false

	// Close page
	f.endpage()
	// Close document
	f.enddoc()
	return
}

// PageSize returns the width and height of the specified page in the units
// established in New(). These return values are followed by the unit of
// measure itself. If pageNum is zero or otherwise out of bounds, it returns
// the default page size, that is, the size of the page that would be added by
// AddPage().
func (f *Fpdf) PageSize(pageNum int) (wd, ht float64, unitStr string) {
	sz, ok := f.pageSizes[pageNum]
	if ok {
		sz.Wd, sz.Ht = sz.Wd/f.k, sz.Ht/f.k
	} else {
		sz = f.defPageSize // user units
	}
	return sz.Wd, sz.Ht, f.unitStr
}

// AddPageFormat adds a new page with non-default orientation or size. See
// AddPage() for more details.
//
// See New() for a description of orientationStr.
//
// size specifies the size of the new page in the units established in New().
//
// The PageSize() example demonstrates this method.
func (f *Fpdf) AddPageFormat(orientationStr string, size SizeType) {
	if f.err != nil {
		return
	}
	if f.page != len(f.pages)-1 {
		f.page = len(f.pages) - 1
	}
	if f.state == 0 {
		f.open()
	}
	familyStr := f.fontFamily
	style := f.fontStyle
	if f.underline {
		style += "U"
	}
	if f.strikeout {
		style += "S"
	}
	fontsize := f.fontSizePt
	lw := f.lineWidth
	dc := f.color.draw
	fc := f.color.fill
	tc := f.color.text
	cf := f.colorFlag

	if f.page > 0 {
		f.inFooter = true
		// Page footer avoid double call on footer.
		if f.footerFnc != nil {
			f.footerFnc()

		} else if f.footerFncLpi != nil {
			f.footerFncLpi(false) // not last page.
		}
		f.inFooter = false
		// Close page
		f.endpage()
	}
	// Start new page
	f.beginpage(orientationStr, size)
	// 	Set line cap style to current value
	// f.out("2 J")
	f.outf("%d J", f.capStyle)
	// 	Set line join style to current value
	f.outf("%d j", f.joinStyle)
	// Set line width
	f.lineWidth = lw
	f.outf("%.2f w", lw*f.k)
	// Set dash pattern
	if len(f.dashArray) > 0 {
		f.outputDashPattern()
	}
	// 	Set font
	if familyStr != "" {
		f.SetFont(familyStr, style, fontsize)
		if f.err != nil {
			return
		}
	}
	// 	Set colors
	f.color.draw = dc
	if dc.str != "0 G" {
		f.out(dc.str)
	}
	f.color.fill = fc
	if fc.str != "0 g" {
		f.out(fc.str)
	}
	f.color.text = tc
	f.colorFlag = cf
	// 	Page header
	if f.headerFnc != nil {
		f.inHeader = true
		f.headerFnc()
		f.inHeader = false
		if f.headerHomeMode {
			f.SetHomeXY()
		}
	}
	// 	Restore line width
	if f.lineWidth != lw {
		f.lineWidth = lw
		f.outf("%.2f w", lw*f.k)
	}
	// Restore font
	if familyStr != "" {
		f.SetFont(familyStr, style, fontsize)
		if f.err != nil {
			return
		}
	}
	// Restore colors
	if f.color.draw.str != dc.str {
		f.color.draw = dc
		f.out(dc.str)
	}
	if f.color.fill.str != fc.str {
		f.color.fill = fc
		f.out(fc.str)
	}
	f.color.text = tc
	f.colorFlag = cf
	return
}

// AddPage adds a new page to the document. If a page is already present, the
// Footer() method is called first to output the footer. Then the page is
// added, the current position set to the top-left corner according to the left
// and top margins, and Header() is called to display the header.
//
// The font which was set before calling is automatically restored. There is no
// need to call SetFont() again if you want to continue with the same font. The
// same is true for colors and line width.
//
// The origin of the coordinate system is at the top-left corner and increasing
// ordinates go downwards.
//
// See AddPageFormat() for a version of this method that allows the page size
// and orientation to be different than the default.
func (f *Fpdf) AddPage() {
	if f.err != nil {
		return
	}
	// dbg("AddPage")
	f.AddPageFormat(f.defOrientation, f.defPageSize)
	return
}

// PageNo returns the current page number.
//
// See the example for AddPage() for a demonstration of this method.
func (f *Fpdf) PageNo() int {
	return f.page
}

func colorComp(v int) (int, float64) {
	if v < 0 {
		v = 0
	} else if v > 255 {
		v = 255
	}
	return v, float64(v) / 255.0
}

func rgbColorValue(r, g, b int, grayStr, fullStr string) (clr colorType) {
	clr.ir, clr.r = colorComp(r)
	clr.ig, clr.g = colorComp(g)
	clr.ib, clr.b = colorComp(b)
	clr.mode = colorModeRGB
	clr.gray = clr.ir == clr.ig && clr.r == clr.b
	if len(grayStr) > 0 {
		if clr.gray {
			clr.str = sprintf("%.3f %s", clr.r, grayStr)
		} else {
			clr.str = sprintf("%.3f %.3f %.3f %s", clr.r, clr.g, clr.b, fullStr)
		}
	} else {
		clr.str = sprintf("%.3f %.3f %.3f", clr.r, clr.g, clr.b)
	}
	return
}

// SetDrawColor defines the color used for all drawing operations (lines,
// rectangles and cell borders). It is expressed in RGB components (0 - 255).
// The method can be called before the first page is created. The value is
// retained from page to page.
func (f *Fpdf) SetDrawColor(r, g, b int) {
	f.setDrawColor(r, g, b)
}

func (f *Fpdf) setDrawColor(r, g, b int) {
	f.color.draw = rgbColorValue(r, g, b, "G", "RG")
	if f.page > 0 {
		f.out(f.color.draw.str)
	}
}

// GetDrawColor returns the most recently set draw color as RGB components (0 -
// 255). This will not be the current value if a draw color of some other type
// (for example, spot) has been more recently set.
func (f *Fpdf) GetDrawColor() (int, int, int) {
	return f.color.draw.ir, f.color.draw.ig, f.color.draw.ib
}

// SetFillColor defines the color used for all filling operations (filled
// rectangles and cell backgrounds). It is expressed in RGB components (0
// -255). The method can be called before the first page is created and the
// value is retained from page to page.
func (f *Fpdf) SetFillColor(r, g, b int) {
	f.setFillColor(r, g, b)
}

func (f *Fpdf) setFillColor(r, g, b int) {
	f.color.fill = rgbColorValue(r, g, b, "g", "rg")
	f.colorFlag = f.color.fill.str != f.color.text.str
	if f.page > 0 {
		f.out(f.color.fill.str)
	}
}

// GetFillColor returns the most recently set fill color as RGB components (0 -
// 255). This will not be the current value if a fill color of some other type
// (for example, spot) has been more recently set.
func (f *Fpdf) GetFillColor() (int, int, int) {
	return f.color.fill.ir, f.color.fill.ig, f.color.fill.ib
}

// SetTextColor defines the color used for text. It is expressed in RGB
// components (0 - 255). The method can be called before the first page is
// created. The value is retained from page to page.
func (f *Fpdf) SetTextColor(r, g, b int) {
	f.setTextColor(r, g, b)
}

func (f *Fpdf) setTextColor(r, g, b int) {
	f.color.text = rgbColorValue(r, g, b, "g", "rg")
	f.colorFlag = f.color.fill.str != f.color.text.str
}

// GetTextColor returns the most recently set text color as RGB components (0 -
// 255). This will not be the current value if a text color of some other type
// (for example, spot) has been more recently set.
func (f *Fpdf) GetTextColor() (int, int, int) {
	return f.color.text.ir, f.color.text.ig, f.color.text.ib
}

// GetStringWidth returns the length of a string in user units. A font must be
// currently selected.
func (f *Fpdf) GetStringWidth(s string) float64 {
	if f.err != nil {
		return 0
	}
	w := f.GetStringSymbolWidth(s)
	return float64(w) * f.fontSize / 1000
}

// GetStringSymbolWidth returns the length of a string in glyf units. A font must be
// currently selected.
func (f *Fpdf) GetStringSymbolWidth(s string) int {
	if f.err != nil {
		return 0
	}
	w := 0
	if f.isCurrentUTF8 {
		unicode := []rune(s)
		for _, char := range unicode {
			intChar := int(char)
			if len(f.currentFont.Cw) >= intChar && f.currentFont.Cw[intChar] > 0 {
				if f.currentFont.Cw[intChar] != 65535 {
					w += f.currentFont.Cw[intChar]
				}
			} else if f.currentFont.Desc.MissingWidth != 0 {
				w += f.currentFont.Desc.MissingWidth
			} else {
				w += 500
			}
		}
	} else {
		for _, ch := range []byte(s) {
			if ch == 0 {
				break
			}
			w += f.currentFont.Cw[ch]
		}
	}
	return w
}

// SetLineWidth defines the line width. By default, the value equals 0.2 mm.
// The method can be called before the first page is created. The value is
// retained from page to page.
func (f *Fpdf) SetLineWidth(width float64) {
	f.setLineWidth(width)
}

func (f *Fpdf) setLineWidth(width float64) {
	f.lineWidth = width
	if f.page > 0 {
		f.outf("%.2f w", width*f.k)
	}
}

// GetLineWidth returns the current line thickness.
func (f *Fpdf) GetLineWidth() float64 {
	return f.lineWidth
}

// SetLineCapStyle defines the line cap style. styleStr should be "butt",
// "round" or "square". A square style projects from the end of the line. The
// method can be called before the first page is created. The value is
// retained from page to page.
func (f *Fpdf) SetLineCapStyle(styleStr string) {
	var capStyle int
	switch styleStr {
	case "round":
		capStyle = 1
	case "square":
		capStyle = 2
	default:
		capStyle = 0
	}
	f.capStyle = capStyle
	if f.page > 0 {
		f.outf("%d J", f.capStyle)
	}
}

// SetLineJoinStyle defines the line cap style. styleStr should be "miter",
// "round" or "bevel". The method can be called before the first page
// is created. The value is retained from page to page.
func (f *Fpdf) SetLineJoinStyle(styleStr string) {
	var joinStyle int
	switch styleStr {
	case "round":
		joinStyle = 1
	case "bevel":
		joinStyle = 2
	default:
		joinStyle = 0
	}
	f.joinStyle = joinStyle
	if f.page > 0 {
		f.outf("%d j", f.joinStyle)
	}
}

// SetDashPattern sets the dash pattern that is used to draw lines. The
// dashArray elements are numbers that specify the lengths, in units
// established in New(), of alternating dashes and gaps. The dash phase
// specifies the distance into the dash pattern at which to start the dash. The
// dash pattern is retained from page to page. Call this method with an empty
// array to restore solid line drawing.
//
// The Beziergon() example demonstrates this method.
func (f *Fpdf) SetDashPattern(dashArray []float64, dashPhase float64) {
	scaled := make([]float64, len(dashArray))
	for i, value := range dashArray {
		scaled[i] = value * f.k
	}
	dashPhase *= f.k

	f.dashArray = scaled
	f.dashPhase = dashPhase
	if f.page > 0 {
		f.outputDashPattern()
	}

}

func (f *Fpdf) outputDashPattern() {
	var buf bytes.Buffer
	buf.WriteByte('[')
	for i, value := range f.dashArray {
		if i > 0 {
			buf.WriteByte(' ')
		}
		buf.WriteString(strconv.FormatFloat(value, 'f', 2, 64))
	}
	buf.WriteString("] ")
	buf.WriteString(strconv.FormatFloat(f.dashPhase, 'f', 2, 64))
	buf.WriteString(" d")
	f.outbuf(&buf)
}

// Line draws a line between points (x1, y1) and (x2, y2) using the current
// draw color, line width and cap style.
func (f *Fpdf) Line(x1, y1, x2, y2 float64) {
	f.outf("%.2f %.2f m %.2f %.2f l S", x1*f.k, (f.h-y1)*f.k, x2*f.k, (f.h-y2)*f.k)
}

// fillDrawOp corrects path painting operators
func fillDrawOp(styleStr string) (opStr string) {
	switch strings.ToUpper(styleStr) {
	case "", "D":
		// Stroke the path.
		opStr = "S"
	case "F":
		// fill the path, using the nonzero winding number rule
		opStr = "f"
	case "F*":
		// fill the path, using the even-odd rule
		opStr = "f*"
	case "FD", "DF":
		// fill and then stroke the path, using the nonzero winding number rule
		opStr = "B"
	case "FD*", "DF*":
		// fill and then stroke the path, using the even-odd rule
		opStr = "B*"
	default:
		opStr = styleStr
	}
	return
}

// Rect outputs a rectangle of width w and height h with the upper left corner
// positioned at point (x, y).
//
// It can be drawn (border only), filled (with no border) or both. styleStr can
// be "F" for filled, "D" for outlined only, or "DF" or "FD" for outlined and
// filled. An empty string will be replaced with "D". Drawing uses the current
// draw color and line width centered on the rectangle's perimeter. Filling
// uses the current fill color.
func (f *Fpdf) Rect(x, y, w, h float64, styleStr string) {
	f.outf("%.2f %.2f %.2f %.2f re %s", x*f.k, (f.h-y)*f.k, w*f.k, -h*f.k, fillDrawOp(styleStr))
}

// RoundedRect outputs a rectangle of width w and height h with the upper left
// corner positioned at point (x, y). It can be drawn (border only), filled
// (with no border) or both. styleStr can be "F" for filled, "D" for outlined
// only, or "DF" or "FD" for outlined and filled. An empty string will be
// replaced with "D". Drawing uses the current draw color and line width
// centered on the rectangle's perimeter. Filling uses the current fill color.
// The rounded corners of the rectangle are specified by radius r. corners is a
// string that includes "1" to round the upper left corner, "2" to round the
// upper right corner, "3" to round the lower right corner, and "4" to round
// the lower left corner. The RoundedRect example demonstrates this method.
func (f *Fpdf) RoundedRect(x, y, w, h, r float64, corners string, stylestr string) {
	// This routine was adapted by Brigham Thompson from a script by Christophe Prugnaud
	var rTL, rTR, rBR, rBL float64 // zero means no rounded corner
	if strings.Contains(corners, "1") {
		rTL = r
	}
	if strings.Contains(corners, "2") {
		rTR = r
	}
	if strings.Contains(corners, "3") {
		rBR = r
	}
	if strings.Contains(corners, "4") {
		rBL = r
	}
	f.RoundedRectExt(x, y, w, h, rTL, rTR, rBR, rBL, stylestr)
}

// RoundedRectExt behaves the same as RoundedRect() but supports a different
// radius for each corner. A zero radius means squared corner. See
// RoundedRect() for more details. This method is demonstrated in the
// RoundedRect() example.
func (f *Fpdf) RoundedRectExt(x, y, w, h, rTL, rTR, rBR, rBL float64, stylestr string) {
	f.roundedRectPath(x, y, w, h, rTL, rTR, rBR, rBL)
	f.out(fillDrawOp(stylestr))
}

// Circle draws a circle centered on point (x, y) with radius r.
//
// styleStr can be "F" for filled, "D" for outlined only, or "DF" or "FD" for
// outlined and filled. An empty string will be replaced with "D". Drawing uses
// the current draw color and line width centered on the circle's perimeter.
// Filling uses the current fill color.
func (f *Fpdf) Circle(x, y, r float64, styleStr string) {
	f.Ellipse(x, y, r, r, 0, styleStr)
}

// Ellipse draws an ellipse centered at point (x, y). rx and ry specify its
// horizontal and vertical radii.
//
// degRotate specifies the counter-clockwise angle in degrees that the ellipse
// will be rotated.
//
// styleStr can be "F" for filled, "D" for outlined only, or "DF" or "FD" for
// outlined and filled. An empty string will be replaced with "D". Drawing uses
// the current draw color and line width centered on the ellipse's perimeter.
// Filling uses the current fill color.
//
// The Circle() example demonstrates this method.
func (f *Fpdf) Ellipse(x, y, rx, ry, degRotate float64, styleStr string) {
	f.arc(x, y, rx, ry, degRotate, 0, 360, styleStr, false)
}

// Polygon draws a closed figure defined by a series of vertices specified by
// points. The x and y fields of the points use the units established in New().
// The last point in the slice will be implicitly joined to the first to close
// the polygon.
//
// styleStr can be "F" for filled, "D" for outlined only, or "DF" or "FD" for
// outlined and filled. An empty string will be replaced with "D". Drawing uses
// the current draw color and line width centered on the ellipse's perimeter.
// Filling uses the current fill color.
func (f *Fpdf) Polygon(points []PointType, styleStr string) {
	if len(points) > 2 {
		for j, pt := range points {
			if j == 0 {
				f.point(pt.X, pt.Y)
			} else {
				f.outf("%.5f %.5f l ", pt.X*f.k, (f.h-pt.Y)*f.k)
			}
		}
		f.outf("%.5f %.5f l ", points[0].X*f.k, (f.h-points[0].Y)*f.k)
		f.DrawPath(styleStr)
	}
}

// Beziergon draws a closed figure defined by a series of cubic Bézier curve
// segments. The first point in the slice defines the starting point of the
// figure. Each three following points p1, p2, p3 represent a curve segment to
// the point p3 using p1 and p2 as the Bézier control points.
//
// The x and y fields of the points use the units established in New().
//
// styleStr can be "F" for filled, "D" for outlined only, or "DF" or "FD" for
// outlined and filled. An empty string will be replaced with "D". Drawing uses
// the current draw color and line width centered on the ellipse's perimeter.
// Filling uses the current fill color.
func (f *Fpdf) Beziergon(points []PointType, styleStr string) {

	// Thanks, Robert Lillack, for contributing this function.

	if len(points) < 4 {
		return
	}
	f.point(points[0].XY())

	points = points[1:]
	for len(points) >= 3 {
		cx0, cy0 := points[0].XY()
		cx1, cy1 := points[1].XY()
		x1, y1 := points[2].XY()
		f.curve(cx0, cy0, cx1, cy1, x1, y1)
		points = points[3:]
	}

	f.DrawPath(styleStr)
}

// point outputs current point
func (f *Fpdf) point(x, y float64) {
	f.outf("%.2f %.2f m", x*f.k, (f.h-y)*f.k)
}

// curve outputs a single cubic Bézier curve segment from current point
func (f *Fpdf) curve(cx0, cy0, cx1, cy1, x, y float64) {
	// Thanks, Robert Lillack, for straightening this out
	f.outf("%.5f %.5f %.5f %.5f %.5f %.5f c", cx0*f.k, (f.h-cy0)*f.k, cx1*f.k,
		(f.h-cy1)*f.k, x*f.k, (f.h-y)*f.k)
}

// Curve draws a single-segment quadratic Bézier curve. The curve starts at
// the point (x0, y0) and ends at the point (x1, y1). The control point (cx,
// cy) specifies the curvature. At the start point, the curve is tangent to the
// straight line between the start point and the control point. At the end
// point, the curve is tangent to the straight line between the end point and
// the control point.
//
// styleStr can be "F" for filled, "D" for outlined only, or "DF" or "FD" for
// outlined and filled. An empty string will be replaced with "D". Drawing uses
// the current draw color, line width, and cap style centered on the curve's
// path. Filling uses the current fill color.
//
// The Circle() example demonstrates this method.
func (f *Fpdf) Curve(x0, y0, cx, cy, x1, y1 float64, styleStr string) {
	f.point(x0, y0)
	f.outf("%.5f %.5f %.5f %.5f v %s", cx*f.k, (f.h-cy)*f.k, x1*f.k, (f.h-y1)*f.k,
		fillDrawOp(styleStr))
}

// CurveCubic draws a single-segment cubic Bézier curve. This routine performs
// the same function as CurveBezierCubic() but has a nonstandard argument order.
// It is retained to preserve backward compatibility.
func (f *Fpdf) CurveCubic(x0, y0, cx0, cy0, x1, y1, cx1, cy1 float64, styleStr string) {
	// f.point(x0, y0)
	// f.outf("%.5f %.5f %.5f %.5f %.5f %.5f c %s", cx0*f.k, (f.h-cy0)*f.k,
	// cx1*f.k, (f.h-cy1)*f.k, x1*f.k, (f.h-y1)*f.k, fillDrawOp(styleStr))
	f.CurveBezierCubic(x0, y0, cx0, cy0, cx1, cy1, x1, y1, styleStr)
}

// CurveBezierCubic draws a single-segment cubic Bézier curve. The curve starts at
// the point (x0, y0) and ends at the point (x1, y1). The control points (cx0,
// cy0) and (cx1, cy1) specify the curvature. At the start point, the curve is
// tangent to the straight line between the start point and the control point
// (cx0, cy0). At the end point, the curve is tangent to the straight line
// between the end point and the control point (cx1, cy1).
//
// styleStr can be "F" for filled, "D" for outlined only, or "DF" or "FD" for
// outlined and filled. An empty string will be replaced with "D". Drawing uses
// the current draw color, line width, and cap style centered on the curve's
// path. Filling uses the current fill color.
//
// This routine performs the same function as CurveCubic() but uses standard
// argument order.
//
// The Circle() example demonstrates this method.
func (f *Fpdf) CurveBezierCubic(x0, y0, cx0, cy0, cx1, cy1, x1, y1 float64, styleStr string) {
	f.point(x0, y0)
	f.outf("%.5f %.5f %.5f %.5f %.5f %.5f c %s", cx0*f.k, (f.h-cy0)*f.k,
		cx1*f.k, (f.h-cy1)*f.k, x1*f.k, (f.h-y1)*f.k, fillDrawOp(styleStr))
}

// Arc draws an elliptical arc centered at point (x, y). rx and ry specify its
// horizontal and vertical radii.
//
// degRotate specifies the angle that the arc will be rotated. degStart and
// degEnd specify the starting and ending angle of the arc. All angles are
// specified in degrees and measured counter-clockwise from the 3 o'clock
// position.
//
// styleStr can be "F" for filled, "D" for outlined only, or "DF" or "FD" for
// outlined and filled. An empty string will be replaced with "D". Drawing uses
// the current draw color, line width, and cap style centered on the arc's
// path. Filling uses the current fill color.
//
// The Circle() example demonstrates this method.
func (f *Fpdf) Arc(x, y, rx, ry, degRotate, degStart, degEnd float64, styleStr string) {
	f.arc(x, y, rx, ry, degRotate, degStart, degEnd, styleStr, false)
}

// GetAlpha returns the alpha blending channel, which consists of the
// alpha transparency value and the blend mode. See SetAlpha for more
// details.
func (f *Fpdf) GetAlpha() (alpha float64, blendModeStr string) {
	return f.alpha, f.blendMode
}

// SetAlpha sets the alpha blending channel. The blending effect applies to
// text, drawings and images.
//
// alpha must be a value between 0.0 (fully transparent) to 1.0 (fully opaque).
// Values outside of this range result in an error.
//
// blendModeStr must be one of "Normal", "Multiply", "Screen", "Overlay",
// "Darken", "Lighten", "ColorDodge", "ColorBurn","HardLight", "SoftLight",
// "Difference", "Exclusion", "Hue", "Saturation", "Color", or "Luminosity". An
// empty string is replaced with "Normal".
//
// To reset normal rendering after applying a blending mode, call this method
// with alpha set to 1.0 and blendModeStr set to "Normal".
func (f *Fpdf) SetAlpha(alpha float64, blendModeStr string) {
	if f.err != nil {
		return
	}
	var bl blendModeType
	switch blendModeStr {
	case "Normal", "Multiply", "Screen", "Overlay",
		"Darken", "Lighten", "ColorDodge", "ColorBurn", "HardLight", "SoftLight",
		"Difference", "Exclusion", "Hue", "Saturation", "Color", "Luminosity":
		bl.modeStr = blendModeStr
	case "":
		bl.modeStr = "Normal"
	default:
		f.err = fmt.Errorf("unrecognized blend mode \"%s\"", blendModeStr)
		return
	}
	if alpha < 0.0 || alpha > 1.0 {
		f.err = fmt.Errorf("alpha value (0.0 - 1.0) is out of range: %.3f", alpha)
		return
	}
	f.alpha = alpha
	f.blendMode = blendModeStr
	alphaStr := sprintf("%.3f", alpha)
	keyStr := sprintf("%s %s", alphaStr, blendModeStr)
	pos, ok := f.blendMap[keyStr]
	if !ok {
		pos = len(f.blendList) // at least 1
		f.blendList = append(f.blendList, blendModeType{alphaStr, alphaStr, blendModeStr, 0})
		f.blendMap[keyStr] = pos
	}
	f.outf("/GS%d gs", pos)
}

func (f *Fpdf) gradientClipStart(x, y, w, h float64) {
	// Save current graphic state and set clipping area
	f.outf("q %.2f %.2f %.2f %.2f re W n", x*f.k, (f.h-y)*f.k, w*f.k, -h*f.k)
	// Set up transformation matrix for gradient
	f.outf("%.5f 0 0 %.5f %.5f %.5f cm", w*f.k, h*f.k, x*f.k, (f.h-(y+h))*f.k)
}

func (f *Fpdf) gradientClipEnd() {
	// Restore previous graphic state
	f.out("Q")
}

func (f *Fpdf) gradient(tp, r1, g1, b1, r2, g2, b2 int, x1, y1, x2, y2, r float64) {
	pos := len(f.gradientList)
	clr1 := rgbColorValue(r1, g1, b1, "", "")
	clr2 := rgbColorValue(r2, g2, b2, "", "")
	f.gradientList = append(f.gradientList, gradientType{tp, clr1.str, clr2.str,
		x1, y1, x2, y2, r, 0})
	f.outf("/Sh%d sh", pos)
}

// LinearGradient draws a rectangular area with a blending of one color to
// another. The rectangle is of width w and height h. Its upper left corner is
// positioned at point (x, y).
//
// Each color is specified with three component values, one each for red, green
// and blue. The values range from 0 to 255. The first color is specified by
// (r1, g1, b1) and the second color by (r2, g2, b2).
//
// The blending is controlled with a gradient vector that uses normalized
// coordinates in which the lower left corner is position (0, 0) and the upper
// right corner is (1, 1). The vector's origin and destination are specified by
// the points (x1, y1) and (x2, y2). In a linear gradient, blending occurs
// perpendicularly to the vector. The vector does not necessarily need to be
// anchored on the rectangle edge. Color 1 is used up to the origin of the
// vector and color 2 is used beyond the vector's end point. Between the points
// the colors are gradually blended.
func (f *Fpdf) LinearGradient(x, y, w, h float64, r1, g1, b1, r2, g2, b2 int, x1, y1, x2, y2 float64) {
	f.gradientClipStart(x, y, w, h)
	f.gradient(2, r1, g1, b1, r2, g2, b2, x1, y1, x2, y2, 0)
	f.gradientClipEnd()
}

// RadialGradient draws a rectangular area with a blending of one color to
// another. The rectangle is of width w and height h. Its upper left corner is
// positioned at point (x, y).
//
// Each color is specified with three component values, one each for red, green
// and blue. The values range from 0 to 255. The first color is specified by
// (r1, g1, b1) and the second color by (r2, g2, b2).
//
// The blending is controlled with a point and a circle, both specified with
// normalized coordinates in which the lower left corner of the rendered
// rectangle is position (0, 0) and the upper right corner is (1, 1). Color 1
// begins at the origin point specified by (x1, y1). Color 2 begins at the
// circle specified by the center point (x2, y2) and radius r. Colors are
// gradually blended from the origin to the circle. The origin and the circle's
// center do not necessarily have to coincide, but the origin must be within
// the circle to avoid rendering problems.
//
// The LinearGradient() example demonstrates this method.
func (f *Fpdf) RadialGradient(x, y, w, h float64, r1, g1, b1, r2, g2, b2 int, x1, y1, x2, y2, r float64) {
	f.gradientClipStart(x, y, w, h)
	f.gradient(3, r1, g1, b1, r2, g2, b2, x1, y1, x2, y2, r)
	f.gradientClipEnd()
}

// ClipRect begins a rectangular clipping operation. The rectangle is of width
// w and height h. Its upper left corner is positioned at point (x, y). outline
// is true to draw a border with the current draw color and line width centered
// on the rectangle's perimeter. Only the outer half of the border will be
// shown. After calling this method, all rendering operations (for example,
// Image(), LinearGradient(), etc) will be clipped by the specified rectangle.
// Call ClipEnd() to restore unclipped operations.
//
// This ClipText() example demonstrates this method.
func (f *Fpdf) ClipRect(x, y, w, h float64, outline bool) {
	f.clipNest++
	f.outf("q %.2f %.2f %.2f %.2f re W %s", x*f.k, (f.h-y)*f.k, w*f.k, -h*f.k, strIf(outline, "S", "n"))
}

// ClipText begins a clipping operation in which rendering is confined to the
// character string specified by txtStr. The origin (x, y) is on the left of
// the first character at the baseline. The current font is used. outline is
// true to draw a border with the current draw color and line width centered on
// the perimeters of the text characters. Only the outer half of the border
// will be shown. After calling this method, all rendering operations (for
// example, Image(), LinearGradient(), etc) will be clipped. Call ClipEnd() to
// restore unclipped operations.
func (f *Fpdf) ClipText(x, y float64, txtStr string, outline bool) {
	f.clipNest++
	f.outf("q BT %.5f %.5f Td %d Tr (%s) Tj ET", x*f.k, (f.h-y)*f.k, intIf(outline, 5, 7), f.escape(txtStr))
}

func (f *Fpdf) clipArc(x1, y1, x2, y2, x3, y3 float64) {
	h := f.h
	f.outf("%.5f %.5f %.5f %.5f %.5f %.5f c ", x1*f.k, (h-y1)*f.k,
		x2*f.k, (h-y2)*f.k, x3*f.k, (h-y3)*f.k)
}

// ClipRoundedRect begins a rectangular clipping operation. The rectangle is of
// width w and height h. Its upper left corner is positioned at point (x, y).
// The rounded corners of the rectangle are specified by radius r. outline is
// true to draw a border with the current draw color and line width centered on
// the rectangle's perimeter. Only the outer half of the border will be shown.
// After calling this method, all rendering operations (for example, Image(),
// LinearGradient(), etc) will be clipped by the specified rectangle. Call
// ClipEnd() to restore unclipped operations.
//
// This ClipText() example demonstrates this method.
func (f *Fpdf) ClipRoundedRect(x, y, w, h, r float64, outline bool) {
	f.ClipRoundedRectExt(x, y, w, h, r, r, r, r, outline)
}

// ClipRoundedRectExt behaves the same as ClipRoundedRect() but supports a
// different radius for each corner, given by rTL (top-left), rTR (top-right)
// rBR (bottom-right), rBL (bottom-left). See ClipRoundedRect() for more
// details. This method is demonstrated in the ClipText() example.
func (f *Fpdf) ClipRoundedRectExt(x, y, w, h, rTL, rTR, rBR, rBL float64, outline bool) {
	f.clipNest++
	f.roundedRectPath(x, y, w, h, rTL, rTR, rBR, rBL)
	f.outf(" W %s", strIf(outline, "S", "n"))
}

// add a rectangle path with rounded corners.
// routine shared by RoundedRect() and ClipRoundedRect(), which add the
// drawing operation
func (f *Fpdf) roundedRectPath(x, y, w, h, rTL, rTR, rBR, rBL float64) {
	k := f.k
	hp := f.h
	myArc := (4.0 / 3.0) * (math.Sqrt2 - 1.0)
	f.outf("q %.5f %.5f m", (x+rTL)*k, (hp-y)*k)
	xc := x + w - rTR
	yc := y + rTR
	f.outf("%.5f %.5f l", xc*k, (hp-y)*k)
	if rTR != 0 {
		f.clipArc(xc+rTR*myArc, yc-rTR, xc+rTR, yc-rTR*myArc, xc+rTR, yc)
	}
	xc = x + w - rBR
	yc = y + h - rBR
	f.outf("%.5f %.5f l", (x+w)*k, (hp-yc)*k)
	if rBR != 0 {
		f.clipArc(xc+rBR, yc+rBR*myArc, xc+rBR*myArc, yc+rBR, xc, yc+rBR)
	}
	xc = x + rBL
	yc = y + h - rBL
	f.outf("%.5f %.5f l", xc*k, (hp-(y+h))*k)
	if rBL != 0 {
		f.clipArc(xc-rBL*myArc, yc+rBL, xc-rBL, yc+rBL*myArc, xc-rBL, yc)
	}
	xc = x + rTL
	yc = y + rTL
	f.outf("%.5f %.5f l", x*k, (hp-yc)*k)
	if rTL != 0 {
		f.clipArc(xc-rTL, yc-rTL*myArc, xc-rTL*myArc, yc-rTL, xc, yc-rTL)
	}
}

// ClipEllipse begins an elliptical clipping operation. The ellipse is centered
// at (x, y). Its horizontal and vertical radii are specified by rx and ry.
// outline is true to draw a border with the current draw color and line width
// centered on the ellipse's perimeter. Only the outer half of the border will
// be shown. After calling this method, all rendering operations (for example,
// Image(), LinearGradient(), etc) will be clipped by the specified ellipse.
// Call ClipEnd() to restore unclipped operations.
//
// This ClipText() example demonstrates this method.
func (f *Fpdf) ClipEllipse(x, y, rx, ry float64, outline bool) {
	f.clipNest++
	lx := (4.0 / 3.0) * rx * (math.Sqrt2 - 1)
	ly := (4.0 / 3.0) * ry * (math.Sqrt2 - 1)
	k := f.k
	h := f.h
	f.outf("q %.5f %.5f m %.5f %.5f %.5f %.5f %.5f %.5f c",
		(x+rx)*k, (h-y)*k,
		(x+rx)*k, (h-(y-ly))*k,
		(x+lx)*k, (h-(y-ry))*k,
		x*k, (h-(y-ry))*k)
	f.outf("%.5f %.5f %.5f %.5f %.5f %.5f c",
		(x-lx)*k, (h-(y-ry))*k,
		(x-rx)*k, (h-(y-ly))*k,
		(x-rx)*k, (h-y)*k)
	f.outf("%.5f %.5f %.5f %.5f %.5f %.5f c",
		(x-rx)*k, (h-(y+ly))*k,
		(x-lx)*k, (h-(y+ry))*k,
		x*k, (h-(y+ry))*k)
	f.outf("%.5f %.5f %.5f %.5f %.5f %.5f c W %s",
		(x+lx)*k, (h-(y+ry))*k,
		(x+rx)*k, (h-(y+ly))*k,
		(x+rx)*k, (h-y)*k,
		strIf(outline, "S", "n"))
}

// ClipCircle begins a circular clipping operation. The circle is centered at
// (x, y) and has radius r. outline is true to draw a border with the current
// draw color and line width centered on the circle's perimeter. Only the outer
// half of the border will be shown. After calling this method, all rendering
// operations (for example, Image(), LinearGradient(), etc) will be clipped by
// the specified circle. Call ClipEnd() to restore unclipped operations.
//
// The ClipText() example demonstrates this method.
func (f *Fpdf) ClipCircle(x, y, r float64, outline bool) {
	f.ClipEllipse(x, y, r, r, outline)
}

// ClipPolygon begins a clipping operation within a polygon. The figure is
// defined by a series of vertices specified by points. The x and y fields of
// the points use the units established in New(). The last point in the slice
// will be implicitly joined to the first to close the polygon. outline is true
// to draw a border with the current draw color and line width centered on the
// polygon's perimeter. Only the outer half of the border will be shown. After
// calling this method, all rendering operations (for example, Image(),
// LinearGradient(), etc) will be clipped by the specified polygon. Call
// ClipEnd() to restore unclipped operations.
//
// The ClipText() example demonstrates this method.
func (f *Fpdf) ClipPolygon(points []PointType, outline bool) {
	f.clipNest++
	var s fmtBuffer
	h := f.h
	k := f.k
	s.printf("q ")
	for j, pt := range points {
		s.printf("%.5f %.5f %s ", pt.X*k, (h-pt.Y)*k, strIf(j == 0, "m", "l"))
	}
	s.printf("h W %s", strIf(outline, "S", "n"))
	f.out(s.String())
}

// ClipEnd ends a clipping operation that was started with a call to
// ClipRect(), ClipRoundedRect(), ClipText(), ClipEllipse(), ClipCircle() or
// ClipPolygon(). Clipping operations can be nested. The document cannot be
// successfully output while a clipping operation is active.
//
// The ClipText() example demonstrates this method.
func (f *Fpdf) ClipEnd() {
	if f.err == nil {
		if f.clipNest > 0 {
			f.clipNest--
			f.out("Q")
		} else {
			f.err = fmt.Errorf("error attempting to end clip operation out of sequence")
		}
	}
}

// AddFont imports a TrueType, OpenType or Type1 font and makes it available.
// It is necessary to generate a font definition file first with the makefont
// utility. It is not necessary to call this function for the core PDF fonts
// (courier, helvetica, times, zapfdingbats).
//
// The JSON definition file (and the font file itself when embedding) must be
// present in the font directory. If it is not found, the error "Could not
// include font definition file" is set.
//
// family specifies the font family. The name can be chosen arbitrarily. If it
// is a standard family name, it will override the corresponding font. This
// string is used to subsequently set the font with the SetFont method.
//
// style specifies the font style. Acceptable values are (case insensitive) the
// empty string for regular style, "B" for bold, "I" for italic, or "BI" or
// "IB" for bold and italic combined.
//
// fileStr specifies the base name with ".json" extension of the font
// definition file to be added. The file will be loaded from the font directory
// specified in the call to New() or SetFontLocation().
func (f *Fpdf) AddFont(familyStr, styleStr, fileStr string) {
	f.addFont(fontFamilyEscape(familyStr), styleStr, fileStr, false)
}

// AddUTF8Font imports a TrueType font with utf-8 symbols and makes it available.
// It is necessary to generate a font definition file first with the makefont
// utility. It is not necessary to call this function for the core PDF fonts
// (courier, helvetica, times, zapfdingbats).
//
// The JSON definition file (and the font file itself when embedding) must be
// present in the font directory. If it is not found, the error "Could not
// include font definition file" is set.
//
// family specifies the font family. The name can be chosen arbitrarily. If it
// is a standard family name, it will override the corresponding font. This
// string is used to subsequently set the font with the SetFont method.
//
// style specifies the font style. Acceptable values are (case insensitive) the
// empty string for regular style, "B" for bold, "I" for italic, or "BI" or
// "IB" for bold and italic combined.
//
// fileStr specifies the base name with ".json" extension of the font
// definition file to be added. The file will be loaded from the font directory
// specified in the call to New() or SetFontLocation().
func (f *Fpdf) AddUTF8Font(familyStr, styleStr, fileStr string) {
	f.addFont(fontFamilyEscape(familyStr), styleStr, fileStr, true)
}

func (f *Fpdf) addFont(familyStr, styleStr, fileStr string, isUTF8 bool) {
	if fileStr == "" {
		if isUTF8 {
			fileStr = strings.Replace(familyStr, " ", "", -1) + strings.ToLower(styleStr) + ".ttf"
		} else {
			fileStr = strings.Replace(familyStr, " ", "", -1) + strings.ToLower(styleStr) + ".json"
		}
	}
	if isUTF8 {
		fontKey := getFontKey(familyStr, styleStr)
		_, ok := f.fonts[fontKey]
		if ok {
			return
		}
		var ttfStat os.FileInfo
		var err error
		fileStr = path.Join(f.fontpath, fileStr)
		ttfStat, err = os.Stat(fileStr)
		if err != nil {
			f.SetError(err)
			return
		}
		originalSize := ttfStat.Size()
		Type := "UTF8"
		var utf8Bytes []byte
		utf8Bytes, err = ioutil.ReadFile(fileStr)
		if err != nil {
			f.SetError(err)
			return
		}
		reader := fileReader{readerPosition: 0, array: utf8Bytes}
		utf8File := newUTF8Font(&reader)
		err = utf8File.parseFile()
		if err != nil {
			f.SetError(err)
			return
		}

		desc := FontDescType{
			Ascent:       int(utf8File.Ascent),
			Descent:      int(utf8File.Descent),
			CapHeight:    utf8File.CapHeight,
			Flags:        utf8File.Flags,
			FontBBox:     utf8File.Bbox,
			ItalicAngle:  utf8File.ItalicAngle,
			StemV:        utf8File.StemV,
			MissingWidth: round(utf8File.DefaultWidth),
		}

		var sbarr map[int]int
		if f.aliasNbPagesStr == "" {
			sbarr = makeSubsetRange(57)
		} else {
			sbarr = makeSubsetRange(32)
		}
		def := fontDefType{
			Tp:        Type,
			Name:      fontKey,
			Desc:      desc,
			Up:        int(round(utf8File.UnderlinePosition)),
			Ut:        round(utf8File.UnderlineThickness),
			Cw:        utf8File.CharWidths,
			usedRunes: sbarr,
			File:      fileStr,
			utf8File:  utf8File,
		}
		def.i, _ = generateFontID(def)
		f.fonts[fontKey] = def
		f.fontFiles[fontKey] = fontFileType{
			length1:  originalSize,
			fontType: "UTF8",
		}
		f.fontFiles[fileStr] = fontFileType{
			fontType: "UTF8",
		}
	} else {
		if f.fontLoader != nil {
			reader, err := f.fontLoader.Open(fileStr)
			if err == nil {
				f.AddFontFromReader(familyStr, styleStr, reader)
				if closer, ok := reader.(io.Closer); ok {
					closer.Close()
				}
				return
			}
		}

		fileStr = path.Join(f.fontpath, fileStr)
		file, err := os.Open(fileStr)
		if err != nil {
			f.err = err
			return
		}
		defer file.Close()

		f.AddFontFromReader(familyStr, styleStr, file)
	}
}

func makeSubsetRange(end int) map[int]int {
	answer := make(map[int]int)
	for i := 0; i < end; i++ {
		answer[i] = 0
	}
	return answer
}

// AddFontFromBytes imports a TrueType, OpenType or Type1 font from static
// bytes within the executable and makes it available for use in the generated
// document.
//
// family specifies the font family. The name can be chosen arbitrarily. If it
// is a standard family name, it will override the corresponding font. This
// string is used to subsequently set the font with the SetFont method.
//
// style specifies the font style. Acceptable values are (case insensitive) the
// empty string for regular style, "B" for bold, "I" for italic, or "BI" or
// "IB" for bold and italic combined.
//
// jsonFileBytes contain all bytes of JSON file.
//
// zFileBytes contain all bytes of Z file.
func (f *Fpdf) AddFontFromBytes(familyStr, styleStr string, jsonFileBytes, zFileBytes []byte) {
	f.addFontFromBytes(fontFamilyEscape(familyStr), styleStr, jsonFileBytes, zFileBytes, nil)
}

// AddUTF8FontFromBytes  imports a TrueType font with utf-8 symbols from static
// bytes within the executable and makes it available for use in the generated
// document.
//
// family specifies the font family. The name can be chosen arbitrarily. If it
// is a standard family name, it will override the corresponding font. This
// string is used to subsequently set the font with the SetFont method.
//
// style specifies the font style. Acceptable values are (case insensitive) the
// empty string for regular style, "B" for bold, "I" for italic, or "BI" or
// "IB" for bold and italic combined.
//
// jsonFileBytes contain all bytes of JSON file.
//
// zFileBytes contain all bytes of Z file.
func (f *Fpdf) AddUTF8FontFromBytes(familyStr, styleStr string, utf8Bytes []byte) {
	f.addFontFromBytes(fontFamilyEscape(familyStr), styleStr, nil, nil, utf8Bytes)
}

func (f *Fpdf) addFontFromBytes(familyStr, styleStr string, jsonFileBytes, zFileBytes, utf8Bytes []byte) {
	if f.err != nil {
		return
	}

	// load font key
	var ok bool
	fontkey := getFontKey(familyStr, styleStr)
	_, ok = f.fonts[fontkey]

	if ok {
		return
	}

	if utf8Bytes != nil {

		// if styleStr == "IB" {
		// 	styleStr = "BI"
		// }

		Type := "UTF8"
		reader := fileReader{readerPosition: 0, array: utf8Bytes}

		utf8File := newUTF8Font(&reader)

		err := utf8File.parseFile()
		if err != nil {
			fmt.Printf("get metrics Error: %e\n", err)
			return
		}
		desc := FontDescType{
			Ascent:       int(utf8File.Ascent),
			Descent:      int(utf8File.Descent),
			CapHeight:    utf8File.CapHeight,
			Flags:        utf8File.Flags,
			FontBBox:     utf8File.Bbox,
			ItalicAngle:  utf8File.ItalicAngle,
			StemV:        utf8File.StemV,
			MissingWidth: round(utf8File.DefaultWidth),
		}

		var sbarr map[int]int
		if f.aliasNbPagesStr == "" {
			sbarr = makeSubsetRange(57)
		} else {
			sbarr = makeSubsetRange(32)
		}
		def := fontDefType{
			Tp:        Type,
			Name:      fontkey,
			Desc:      desc,
			Up:        int(round(utf8File.UnderlinePosition)),
			Ut:        round(utf8File.UnderlineThickness),
			Cw:        utf8File.CharWidths,
			utf8File:  utf8File,
			usedRunes: sbarr,
		}
		def.i, _ = generateFontID(def)
		f.fonts[fontkey] = def
	} else {
		// load font definitions
		var info fontDefType
		err := json.Unmarshal(jsonFileBytes, &info)

		if err != nil {
			f.err = err
		}

		if f.err != nil {
			return
		}

		if info.i, err = generateFontID(info); err != nil {
			f.err = err
			return
		}

		// search existing encodings
		if len(info.Diff) > 0 {
			n := -1

			for j, str := range f.diffs {
				if str == info.Diff {
					n = j + 1
					break
				}
			}

			if n < 0 {
				f.diffs = append(f.diffs, info.Diff)
				n = len(f.diffs)
			}

			info.DiffN = n
		}

		// embed font
		if len(info.File) > 0 {
			if info.Tp == "TrueType" {
				f.fontFiles[info.File] = fontFileType{
					length1:  int64(info.OriginalSize),
					embedded: true,
					content:  zFileBytes,
				}
			} else {
				f.fontFiles[info.File] = fontFileType{
					length1:  int64(info.Size1),
					length2:  int64(info.Size2),
					embedded: true,
					content:  zFileBytes,
				}
			}
		}

		f.fonts[fontkey] = info
	}
}

// getFontKey is used by AddFontFromReader and GetFontDesc
func getFontKey(familyStr, styleStr string) string {
	familyStr = strings.ToLower(familyStr)
	styleStr = strings.ToUpper(styleStr)
	if styleStr == "IB" {
		styleStr = "BI"
	}
	return familyStr + styleStr
}

// AddFontFromReader imports a TrueType, OpenType or Type1 font and makes it
// available using a reader that satisifies the io.Reader interface. See
// AddFont for details about familyStr and styleStr.
func (f *Fpdf) AddFontFromReader(familyStr, styleStr string, r io.Reader) {
	if f.err != nil {
		return
	}
	// dbg("Adding family [%s], style [%s]", familyStr, styleStr)
	familyStr = fontFamilyEscape(familyStr)
	var ok bool
	fontkey := getFontKey(familyStr, styleStr)
	_, ok = f.fonts[fontkey]
	if ok {
		return
	}
	var info fontDefType
	info = f.loadfont(r)
	if f.err != nil {
		return
	}
	if len(info.Diff) > 0 {
		// Search existing encodings
		n := -1
		for j, str := range f.diffs {
			if str == info.Diff {
				n = j + 1
				break
			}
		}
		if n < 0 {
			f.diffs = append(f.diffs, info.Diff)
			n = len(f.diffs)
		}
		info.DiffN = n
	}
	// dbg("font [%s], type [%s]", info.File, info.Tp)
	if len(info.File) > 0 {
		// Embedded font
		if info.Tp == "TrueType" {
			f.fontFiles[info.File] = fontFileType{length1: int64(info.OriginalSize)}
		} else {
			f.fontFiles[info.File] = fontFileType{length1: int64(info.Size1), length2: int64(info.Size2)}
		}
	}
	f.fonts[fontkey] = info
	return
}

// GetFontDesc returns the font descriptor, which can be used for
// example to find the baseline of a font. If familyStr is empty
// current font descriptor will be returned.
// See FontDescType for documentation about the font descriptor.
// See AddFont for details about familyStr and styleStr.
func (f *Fpdf) GetFontDesc(familyStr, styleStr string) FontDescType {
	if familyStr == "" {
		return f.currentFont.Desc
	}
	return f.fonts[getFontKey(fontFamilyEscape(familyStr), styleStr)].Desc
}

// SetFont sets the font used to print character strings. It is mandatory to
// call this method at least once before printing text or the resulting
// document will not be valid.
//
// The font can be either a standard one or a font added via the AddFont()
// method or AddFontFromReader() method. Standard fonts use the Windows
// encoding cp1252 (Western Europe).
//
// The method can be called before the first page is created and the font is
// kept from page to page. If you just wish to change the current font size, it
// is simpler to call SetFontSize().
//
// Note: the font definition file must be accessible. An error is set if the
// file cannot be read.
//
// familyStr specifies the font family. It can be either a name defined by
// AddFont(), AddFontFromReader() or one of the standard families (case
// insensitive): "Courier" for fixed-width, "Helvetica" or "Arial" for sans
// serif, "Times" for serif, "Symbol" or "ZapfDingbats" for symbolic.
//
// styleStr can be "B" (bold), "I" (italic), "U" (underscore), "S" (strike-out)
// or any combination. The default value (specified with an empty string) is
// regular. Bold and italic styles do not apply to Symbol and ZapfDingbats.
//
// size is the font size measured in points. The default value is the current
// size. If no size has been specified since the beginning of the document, the
// value taken is 12.
func (f *Fpdf) SetFont(familyStr, styleStr string, size float64) {
	// dbg("SetFont x %.2f, lMargin %.2f", f.x, f.lMargin)

	if f.err != nil {
		return
	}
	// dbg("SetFont")
	familyStr = fontFamilyEscape(familyStr)
	var ok bool
	if familyStr == "" {
		familyStr = f.fontFamily
	} else {
		familyStr = strings.ToLower(familyStr)
	}
	styleStr = strings.ToUpper(styleStr)
	f.underline = strings.Contains(styleStr, "U")
	if f.underline {
		styleStr = strings.Replace(styleStr, "U", "", -1)
	}
	f.strikeout = strings.Contains(styleStr, "S")
	if f.strikeout {
		styleStr = strings.Replace(styleStr, "S", "", -1)
	}
	if styleStr == "IB" {
		styleStr = "BI"
	}
	if size == 0.0 {
		size = f.fontSizePt
	}

	// Test if font is already loaded
	fontKey := familyStr + styleStr
	_, ok = f.fonts[fontKey]
	if !ok {
		// Test if one of the core fonts
		if familyStr == "arial" {
			familyStr = "helvetica"
		}
		_, ok = f.coreFonts[familyStr]
		if ok {
			if familyStr == "symbol" {
				familyStr = "zapfdingbats"
			}
			if familyStr == "zapfdingbats" {
				styleStr = ""
			}
			fontKey = familyStr + styleStr
			_, ok = f.fonts[fontKey]
			if !ok {
				rdr := f.coreFontReader(familyStr, styleStr)
				if f.err == nil {
					f.AddFontFromReader(familyStr, styleStr, rdr)
				}
				if f.err != nil {
					return
				}
			}
		} else {
			f.err = fmt.Errorf("undefined font: %s %s", familyStr, styleStr)
			return
		}
	}
	// Select it
	f.fontFamily = familyStr
	f.fontStyle = styleStr
	f.fontSizePt = size
	f.fontSize = size / f.k
	f.currentFont = f.fonts[fontKey]
	if f.currentFont.Tp == "UTF8" {
		f.isCurrentUTF8 = true
	} else {
		f.isCurrentUTF8 = false
	}
	if f.page > 0 {
		f.outf("BT /F%s %.2f Tf ET", f.currentFont.i, f.fontSizePt)
	}
	return
}

// SetFontStyle sets the style of the current font. See also SetFont()
func (f *Fpdf) SetFontStyle(styleStr string) {
	f.SetFont(f.fontFamily, styleStr, f.fontSizePt)
}

// SetFontSize defines the size of the current font. Size is specified in
// points (1/ 72 inch). See also SetFontUnitSize().
func (f *Fpdf) SetFontSize(size float64) {
	f.fontSizePt = size
	f.fontSize = size / f.k
	if f.page > 0 {
		f.outf("BT /F%s %.2f Tf ET", f.currentFont.i, f.fontSizePt)
	}
}

// SetFontUnitSize defines the size of the current font. Size is specified in
// the unit of measure specified in New(). See also SetFontSize().
func (f *Fpdf) SetFontUnitSize(size float64) {
	f.fontSizePt = size * f.k
	f.fontSize = size
	if f.page > 0 {
		f.outf("BT /F%s %.2f Tf ET", f.currentFont.i, f.fontSizePt)
	}
}

// GetFontSize returns the size of the current font in points followed by the
// size in the unit of measure specified in New(). The second value can be used
// as a line height value in drawing operations.
func (f *Fpdf) GetFontSize() (ptSize, unitSize float64) {
	return f.fontSizePt, f.fontSize
}

// AddLink creates a new internal link and returns its identifier. An internal
// link is a clickable area which directs to another place within the document.
// The identifier can then be passed to Cell(), Write(), Image() or Link(). The
// destination is defined with SetLink().
func (f *Fpdf) AddLink() int {
	f.links = append(f.links, intLinkType{})
	return len(f.links) - 1
}

// SetLink defines the page and position a link points to. See AddLink().
func (f *Fpdf) SetLink(link int, y float64, page int) {
	if y == -1 {
		y = f.y
	}
	if page == -1 {
		page = f.page
	}
	f.links[link] = intLinkType{page, y}
}

// newLink adds a new clickable link on current page
func (f *Fpdf) newLink(x, y, w, h float64, link int, linkStr string) {
	// linkList, ok := f.pageLinks[f.page]
	// if !ok {
	// linkList = make([]linkType, 0, 8)
	// f.pageLinks[f.page] = linkList
	// }
	f.pageLinks[f.page] = append(f.pageLinks[f.page],
		linkType{x * f.k, f.hPt - y*f.k, w * f.k, h * f.k, link, linkStr})
}

// Link puts a link on a rectangular area of the page. Text or image links are
// generally put via Cell(), Write() or Image(), but this method can be useful
// for instance to define a clickable area inside an image. link is the value
// returned by AddLink().
func (f *Fpdf) Link(x, y, w, h float64, link int) {
	f.newLink(x, y, w, h, link, "")
}

// LinkString puts a link on a rectangular area of the page. Text or image
// links are generally put via Cell(), Write() or Image(), but this method can
// be useful for instance to define a clickable area inside an image. linkStr
// is the target URL.
func (f *Fpdf) LinkString(x, y, w, h float64, linkStr string) {
	f.newLink(x, y, w, h, 0, linkStr)
}

// Bookmark sets a bookmark that will be displayed in a sidebar outline. txtStr
// is the title of the bookmark. level specifies the level of the bookmark in
// the outline; 0 is the top level, 1 is just below, and so on. y specifies the
// vertical position of the bookmark destination in the current page; -1
// indicates the current position.
func (f *Fpdf) Bookmark(txtStr string, level int, y float64) {
	if y == -1 {
		y = f.y
	}
	if f.isCurrentUTF8 {
		txtStr = utf8toutf16(txtStr)
	}
	f.outlines = append(f.outlines, outlineType{text: txtStr, level: level, y: y, p: f.PageNo(), prev: -1, last: -1, next: -1, first: -1})
}

// Text prints a character string. The origin (x, y) is on the left of the
// first character at the baseline. This method permits a string to be placed
// precisely on the page, but it is usually easier to use Cell(), MultiCell()
// or Write() which are the standard methods to print text.
func (f *Fpdf) Text(x, y float64, txtStr string) {
	var txt2 string
	if f.isCurrentUTF8 {
		if f.isRTL {
			txtStr = reverseText(txtStr)
			x -= f.GetStringWidth(txtStr)
		}
		txt2 = f.escape(utf8toutf16(txtStr, false))
		for _, uni := range []rune(txtStr) {
			f.currentFont.usedRunes[int(uni)] = int(uni)
		}
	} else {
		txt2 = f.escape(txtStr)
	}
	s := sprintf("BT %.2f %.2f Td (%s) Tj ET", x*f.k, (f.h-y)*f.k, txt2)
	if f.underline && txtStr != "" {
		s += " " + f.dounderline(x, y, txtStr)
	}
	if f.strikeout && txtStr != "" {
		s += " " + f.dostrikeout(x, y, txtStr)
	}
	if f.colorFlag {
		s = sprintf("q %s %s Q", f.color.text.str, s)
	}
	f.out(s)
}

// SetWordSpacing sets spacing between words of following text. See the
// WriteAligned() example for a demonstration of its use.
func (f *Fpdf) SetWordSpacing(space float64) {
	f.out(sprintf("%.5f Tw", space*f.k))
}

// SetTextRenderingMode sets the rendering mode of following text.
// The mode can be as follows:
// 0: Fill text
// 1: Stroke text
// 2: Fill, then stroke text
// 3: Neither fill nor stroke text (invisible)
// 4: Fill text and add to path for clipping
// 5: Stroke text and add to path for clipping
// 6: Fills then stroke text and add to path for clipping
// 7: Add text to path for clipping
// This method is demonstrated in the SetTextRenderingMode example.
func (f *Fpdf) SetTextRenderingMode(mode int) {
	if mode >= 0 && mode <= 7 {
		f.out(sprintf("%d Tr", mode))
	}
}

// SetAcceptPageBreakFunc allows the application to control where page breaks
// occur.
//
// fnc is an application function (typically a closure) that is called by the
// library whenever a page break condition is met. The break is issued if true
// is returned. The default implementation returns a value according to the
// mode selected by SetAutoPageBreak. The function provided should not be
// called by the application.
//
// See the example for SetLeftMargin() to see how this function can be used to
// manage multiple columns.
func (f *Fpdf) SetAcceptPageBreakFunc(fnc func() bool) {
	f.acceptPageBreak = fnc
}

// CellFormat prints a rectangular cell with optional borders, background color
// and character string. The upper-left corner of the cell corresponds to the
// current position. The text can be aligned or centered. After the call, the
// current position moves to the right or to the next line. It is possible to
// put a link on the text.
//
// An error will be returned if a call to SetFont() has not already taken
// place before this method is called.
//
// If automatic page breaking is enabled and the cell goes beyond the limit, a
// page break is done before outputting.
//
// w and h specify the width and height of the cell. If w is 0, the cell
// extends up to the right margin. Specifying 0 for h will result in no output,
// but the current position will be advanced by w.
//
// txtStr specifies the text to display.
//
// borderStr specifies how the cell border will be drawn. An empty string
// indicates no border, "1" indicates a full border, and one or more of "L",
// "T", "R" and "B" indicate the left, top, right and bottom sides of the
// border.
//
// ln indicates where the current position should go after the call. Possible
// values are 0 (to the right), 1 (to the beginning of the next line), and 2
// (below). Putting 1 is equivalent to putting 0 and calling Ln() just after.
//
// alignStr specifies how the text is to be positioned within the cell.
// Horizontal alignment is controlled by including "L", "C" or "R" (left,
// center, right) in alignStr. Vertical alignment is controlled by including
// "T", "M", "B" or "A" (top, middle, bottom, baseline) in alignStr. The default
// alignment is left middle.
//
// fill is true to paint the cell background or false to leave it transparent.
//
// link is the identifier returned by AddLink() or 0 for no internal link.
//
// linkStr is a target URL or empty for no external link. A non--zero value for
// link takes precedence over linkStr.
func (f *Fpdf) CellFormat(w, h float64, txtStr, borderStr string, ln int,
	alignStr string, fill bool, link int, linkStr string) {
	// dbg("CellFormat. h = %.2f, borderStr = %s", h, borderStr)
	if f.err != nil {
		return
	}

	if f.currentFont.Name == "" {
		f.err = fmt.Errorf("font has not been set; unable to render text")
		return
	}

	borderStr = strings.ToUpper(borderStr)
	k := f.k
	if f.y+h > f.pageBreakTrigger && !f.inHeader && !f.inFooter && f.acceptPageBreak() {
		// Automatic page break
		x := f.x
		ws := f.ws
		// dbg("auto page break, x %.2f, ws %.2f", x, ws)
		if ws > 0 {
			f.ws = 0
			f.out("0 Tw")
		}
		f.AddPageFormat(f.curOrientation, f.curPageSize)
		if f.err != nil {
			return
		}
		f.x = x
		if ws > 0 {
			f.ws = ws
			f.outf("%.3f Tw", ws*k)
		}
	}
	if w == 0 {
		w = f.w - f.rMargin - f.x
	}
	var s fmtBuffer
	if fill || borderStr == "1" {
		var op string
		if fill {
			if borderStr == "1" {
				op = "B"
				// dbg("border is '1', fill")
			} else {
				op = "f"
				// dbg("border is empty, fill")
			}
		} else {
			// dbg("border is '1', no fill")
			op = "S"
		}
		/// dbg("(CellFormat) f.x %.2f f.k %.2f", f.x, f.k)
		s.printf("%.2f %.2f %.2f %.2f re %s ", f.x*k, (f.h-f.y)*k, w*k, -h*k, op)
	}
	if len(borderStr) > 0 && borderStr != "1" {
		// fmt.Printf("border is '%s', no fill\n", borderStr)
		x := f.x
		y := f.y
		left := x * k
		top := (f.h - y) * k
		right := (x + w) * k
		bottom := (f.h - (y + h)) * k
		if strings.Contains(borderStr, "L") {
			s.printf("%.2f %.2f m %.2f %.2f l S ", left, top, left, bottom)
		}
		if strings.Contains(borderStr, "T") {
			s.printf("%.2f %.2f m %.2f %.2f l S ", left, top, right, top)
		}
		if strings.Contains(borderStr, "R") {
			s.printf("%.2f %.2f m %.2f %.2f l S ", right, top, right, bottom)
		}
		if strings.Contains(borderStr, "B") {
			s.printf("%.2f %.2f m %.2f %.2f l S ", left, bottom, right, bottom)
		}
	}
	if len(txtStr) > 0 {
		var dx, dy float64
		// Horizontal alignment
		switch {
		case strings.Contains(alignStr, "R"):
			dx = w - f.cMargin - f.GetStringWidth(txtStr)
		case strings.Contains(alignStr, "C"):
			dx = (w - f.GetStringWidth(txtStr)) / 2
		default:
			dx = f.cMargin
		}

		// Vertical alignment
		switch {
		case strings.Contains(alignStr, "T"):
			dy = (f.fontSize - h) / 2.0
		case strings.Contains(alignStr, "B"):
			dy = (h - f.fontSize) / 2.0
		case strings.Contains(alignStr, "A"):
			var descent float64
			d := f.currentFont.Desc
			if d.Descent == 0 {
				// not defined (standard font?), use average of 19%
				descent = -0.19 * f.fontSize
			} else {
				descent = float64(d.Descent) * f.fontSize / float64(d.Ascent-d.Descent)
			}
			dy = (h-f.fontSize)/2.0 - descent
		default:
			dy = 0
		}
		if f.colorFlag {
			s.printf("q %s ", f.color.text.str)
		}
		//If multibyte, Tw has no effect - do word spacing using an adjustment before each space
		if (f.ws != 0 || alignStr == "J") && f.isCurrentUTF8 { // && f.ws != 0
			if f.isRTL {
				txtStr = reverseText(txtStr)
			}
			wmax := int(math.Ceil((w - 2*f.cMargin) * 1000 / f.fontSize))
			for _, uni := range []rune(txtStr) {
				f.currentFont.usedRunes[int(uni)] = int(uni)
			}
			space := f.escape(utf8toutf16(" ", false))
			strSize := f.GetStringSymbolWidth(txtStr)
			s.printf("BT 0 Tw %.2f %.2f Td [", (f.x+dx)*k, (f.h-(f.y+.5*h+.3*f.fontSize))*k)
			t := strings.Split(txtStr, " ")
			shift := float64((wmax - strSize)) / float64(len(t)-1)
			numt := len(t)
			for i := 0; i < numt; i++ {
				tx := t[i]
				tx = "(" + f.escape(utf8toutf16(tx, false)) + ")"
				s.printf("%s ", tx)
				if (i + 1) < numt {
					s.printf("%.3f(%s) ", -shift, space)
				}
			}
			s.printf("] TJ ET")
		} else {
			var txt2 string
			if f.isCurrentUTF8 {
				if f.isRTL {
					txtStr = reverseText(txtStr)
				}
				txt2 = f.escape(utf8toutf16(txtStr, false))
				for _, uni := range []rune(txtStr) {
					f.currentFont.usedRunes[int(uni)] = int(uni)
				}
			} else {

				txt2 = strings.Replace(txtStr, "\\", "\\\\", -1)
				txt2 = strings.Replace(txt2, "(", "\\(", -1)
				txt2 = strings.Replace(txt2, ")", "\\)", -1)
			}
			bt := (f.x + dx) * k
			td := (f.h - (f.y + dy + .5*h + .3*f.fontSize)) * k
			s.printf("BT %.2f %.2f Td (%s)Tj ET", bt, td, txt2)
			//BT %.2F %.2F Td (%s) Tj ET',(f.x+dx)*k,(f.h-(f.y+.5*h+.3*f.FontSize))*k,txt2);
		}

		if f.underline {
			s.printf(" %s", f.dounderline(f.x+dx, f.y+dy+.5*h+.3*f.fontSize, txtStr))
		}
		if f.strikeout {
			s.printf(" %s", f.dostrikeout(f.x+dx, f.y+dy+.5*h+.3*f.fontSize, txtStr))
		}
		if f.colorFlag {
			s.printf(" Q")
		}
		if link > 0 || len(linkStr) > 0 {
			f.newLink(f.x+dx, f.y+dy+.5*h-.5*f.fontSize, f.GetStringWidth(txtStr), f.fontSize, link, linkStr)
		}
	}
	str := s.String()
	if len(str) > 0 {
		f.out(str)
	}
	f.lasth = h
	if ln > 0 {
		// Go to next line
		f.y += h
		if ln == 1 {
			f.x = f.lMargin
		}
	} else {
		f.x += w
	}
	return
}

// Revert string to use in RTL languages
func reverseText(text string) string {
	oldText := []rune(text)
	newText := make([]rune, len(oldText))
	length := len(oldText) - 1
	for i, r := range oldText {
		newText[length-i] = r
	}
	return string(newText)
}

// Cell is a simpler version of CellFormat with no fill, border, links or
// special alignment. The Cell_strikeout() example demonstrates this method.
func (f *Fpdf) Cell(w, h float64, txtStr string) {
	f.CellFormat(w, h, txtStr, "", 0, "L", false, 0, "")
}

// Cellf is a simpler printf-style version of CellFormat with no fill, border,
// links or special alignment. See documentation for the fmt package for
// details on fmtStr and args.
func (f *Fpdf) Cellf(w, h float64, fmtStr string, args ...interface{}) {
	f.CellFormat(w, h, sprintf(fmtStr, args...), "", 0, "L", false, 0, "")
}

// SplitLines splits text into several lines using the current font. Each line
// has its length limited to a maximum width given by w. This function can be
// used to determine the total height of wrapped text for vertical placement
// purposes.
//
// This method is useful for codepage-based fonts only. For UTF-8 encoded text,
// use SplitText().
//
// You can use MultiCell if you want to print a text on several lines in a
// simple way.
func (f *Fpdf) SplitLines(txt []byte, w float64) [][]byte {
	// Function contributed by Bruno Michel
	lines := [][]byte{}
	cw := f.currentFont.Cw
	wmax := int(math.Ceil((w - 2*f.cMargin) * 1000 / f.fontSize))
	s := bytes.Replace(txt, []byte("\r"), []byte{}, -1)
	nb := len(s)
	for nb > 0 && s[nb-1] == '\n' {
		nb--
	}
	s = s[0:nb]
	sep := -1
	i := 0
	j := 0
	l := 0
	for i < nb {
		c := s[i]
		l += cw[c]
		if c == ' ' || c == '\t' || c == '\n' {
			sep = i
		}
		if c == '\n' || l > wmax {
			if sep == -1 {
				if i == j {
					i++
				}
				sep = i
			} else {
				i = sep + 1
			}
			lines = append(lines, s[j:sep])
			sep = -1
			j = i
			l = 0
		} else {
			i++
		}
	}
	if i != j {
		lines = append(lines, s[j:i])
	}
	return lines
}

// MultiCell supports printing text with line breaks. They can be automatic (as
// soon as the text reaches the right border of the cell) or explicit (via the
// \n character). As many cells as necessary are output, one below the other.
//
// Text can be aligned, centered or justified. The cell block can be framed and
// the background painted. See CellFormat() for more details.
//
// The current position after calling MultiCell() is the beginning of the next
// line, equivalent to calling CellFormat with ln equal to 1.
//
// w is the width of the cells. A value of zero indicates cells that reach to
// the right margin.
//
// h indicates the line height of each cell in the unit of measure specified in New().
//
// Note: this method has a known bug that treats UTF-8 fonts differently than
// non-UTF-8 fonts. With UTF-8 fonts, all trailing newlines in txtStr are
// removed. With a non-UTF-8 font, if txtStr has one or more trailing newlines,
// only the last is removed. In the next major module version, the UTF-8 logic
// will be changed to match the non-UTF-8 logic. To prepare for that change,
// applications that use UTF-8 fonts and depend on having all trailing newlines
// removed should call strings.TrimRight(txtStr, "\r\n") before calling this
// method.
func (f *Fpdf) MultiCell(w, h float64, txtStr, borderStr, alignStr string, fill bool) {
	if f.err != nil {
		return
	}
	// dbg("MultiCell")
	if alignStr == "" {
		alignStr = "J"
	}
	cw := f.currentFont.Cw
	if w == 0 {
		w = f.w - f.rMargin - f.x
	}
	wmax := int(math.Ceil((w - 2*f.cMargin) * 1000 / f.fontSize))
	s := strings.Replace(txtStr, "\r", "", -1)
	srune := []rune(s)

	// remove extra line breaks
	var nb int
	if f.isCurrentUTF8 {
		nb = len(srune)
		for nb > 0 && srune[nb-1] == '\n' {
			nb--
		}
		srune = srune[0:nb]
	} else {
		nb = len(s)
		bytes2 := []byte(s)

		// for nb > 0 && bytes2[nb-1] == '\n' {

		// Prior to August 2019, if s ended with a newline, this code stripped it.
		// After that date, to be compatible with the UTF-8 code above, *all*
		// trailing newlines were removed. Because this regression caused at least
		// one application to break (see issue #333), the original behavior has been
		// reinstated with a caveat included in the documentation.
		if nb > 0 && bytes2[nb-1] == '\n' {
			nb--
		}
		s = s[0:nb]
	}
	// dbg("[%s]\n", s)
	var b, b2 string
	b = "0"
	if len(borderStr) > 0 {
		if borderStr == "1" {
			borderStr = "LTRB"
			b = "LRT"
			b2 = "LR"
		} else {
			b2 = ""
			if strings.Contains(borderStr, "L") {
				b2 += "L"
			}
			if strings.Contains(borderStr, "R") {
				b2 += "R"
			}
			if strings.Contains(borderStr, "T") {
				b = b2 + "T"
			} else {
				b = b2
			}
		}
	}
	sep := -1
	i := 0
	j := 0
	l := 0
	ls := 0
	ns := 0
	nl := 1
	for i < nb {
		// Get next character
		var c rune
		if f.isCurrentUTF8 {
			c = srune[i]
		} else {
			c = rune(s[i])
		}
		if c == '\n' {
			// Explicit line break
			if f.ws > 0 {
				f.ws = 0
				f.out("0 Tw")
			}

			if f.isCurrentUTF8 {
				newAlignStr := alignStr
				if newAlignStr == "J" {
					if f.isRTL {
						newAlignStr = "R"
					} else {
						newAlignStr = "L"
					}
				}
				f.CellFormat(w, h, string(srune[j:i]), b, 2, newAlignStr, fill, 0, "")
			} else {
				f.CellFormat(w, h, s[j:i], b, 2, alignStr, fill, 0, "")
			}
			i++
			sep = -1
			j = i
			l = 0
			ns = 0
			nl++
			if len(borderStr) > 0 && nl == 2 {
				b = b2
			}
			continue
		}
		if c == ' ' || isChinese(c) {
			sep = i
			ls = l
			ns++
		}
		if int(c) >= len(cw) {
			f.err = fmt.Errorf("character outside the supported range: %s", string(c))
			return
		}
		if cw[int(c)] == 0 { //Marker width 0 used for missing symbols
			l += f.currentFont.Desc.MissingWidth
		} else if cw[int(c)] != 65535 { //Marker width 65535 used for zero width symbols
			l += cw[int(c)]
		}
		if l > wmax {
			// Automatic line break
			if sep == -1 {
				if i == j {
					i++
				}
				if f.ws > 0 {
					f.ws = 0
					f.out("0 Tw")
				}
				if f.isCurrentUTF8 {
					f.CellFormat(w, h, string(srune[j:i]), b, 2, alignStr, fill, 0, "")
				} else {
					f.CellFormat(w, h, s[j:i], b, 2, alignStr, fill, 0, "")
				}
			} else {
				if alignStr == "J" {
					if ns > 1 {
						f.ws = float64((wmax-ls)/1000) * f.fontSize / float64(ns-1)
					} else {
						f.ws = 0
					}
					f.outf("%.3f Tw", f.ws*f.k)
				}
				if f.isCurrentUTF8 {
					f.CellFormat(w, h, string(srune[j:sep]), b, 2, alignStr, fill, 0, "")
				} else {
					f.CellFormat(w, h, s[j:sep], b, 2, alignStr, fill, 0, "")
				}
				i = sep + 1
			}
			sep = -1
			j = i
			l = 0
			ns = 0
			nl++
			if len(borderStr) > 0 && nl == 2 {
				b = b2
			}
		} else {
			i++
		}
	}
	// Last chunk
	if f.ws > 0 {
		f.ws = 0
		f.out("0 Tw")
	}
	if len(borderStr) > 0 && strings.Contains(borderStr, "B") {
		b += "B"
	}
	if f.isCurrentUTF8 {
		if alignStr == "J" {
			if f.isRTL {
				alignStr = "R"
			} else {
				alignStr = ""
			}
		}
		f.CellFormat(w, h, string(srune[j:i]), b, 2, alignStr, fill, 0, "")
	} else {
		f.CellFormat(w, h, s[j:i], b, 2, alignStr, fill, 0, "")
	}
	f.x = f.lMargin
}

// write outputs text in flowing mode
func (f *Fpdf) write(h float64, txtStr string, link int, linkStr string) {
	// dbg("Write")
	cw := f.currentFont.Cw
	w := f.w - f.rMargin - f.x
	wmax := (w - 2*f.cMargin) * 1000 / f.fontSize
	s := strings.Replace(txtStr, "\r", "", -1)
	var nb int
	if f.isCurrentUTF8 {
		nb = len([]rune(s))
		if nb == 1 && s == " " {
			f.x += f.GetStringWidth(s)
			return
		}
	} else {
		nb = len(s)
	}
	sep := -1
	i := 0
	j := 0
	l := 0.0
	nl := 1
	for i < nb {
		// Get next character
		var c rune
		if f.isCurrentUTF8 {
			c = []rune(s)[i]
		} else {
			c = rune(byte(s[i]))
		}
		if c == '\n' {
			// Explicit line break
			if f.isCurrentUTF8 {
				f.CellFormat(w, h, string([]rune(s)[j:i]), "", 2, "", false, link, linkStr)
			} else {
				f.CellFormat(w, h, s[j:i], "", 2, "", false, link, linkStr)
			}
			i++
			sep = -1
			j = i
			l = 0.0
			if nl == 1 {
				f.x = f.lMargin
				w = f.w - f.rMargin - f.x
				wmax = (w - 2*f.cMargin) * 1000 / f.fontSize
			}
			nl++
			continue
		}
		if c == ' ' {
			sep = i
		}
		l += float64(cw[int(c)])
		if l > wmax {
			// Automatic line break
			if sep == -1 {
				if f.x > f.lMargin {
					// Move to next line
					f.x = f.lMargin
					f.y += h
					w = f.w - f.rMargin - f.x
					wmax = (w - 2*f.cMargin) * 1000 / f.fontSize
					i++
					nl++
					continue
				}
				if i == j {
					i++
				}
				if f.isCurrentUTF8 {
					f.CellFormat(w, h, string([]rune(s)[j:i]), "", 2, "", false, link, linkStr)
				} else {
					f.CellFormat(w, h, s[j:i], "", 2, "", false, link, linkStr)
				}
			} else {
				if f.isCurrentUTF8 {
					f.CellFormat(w, h, string([]rune(s)[j:sep]), "", 2, "", false, link, linkStr)
				} else {
					f.CellFormat(w, h, s[j:sep], "", 2, "", false, link, linkStr)
				}
				i = sep + 1
			}
			sep = -1
			j = i
			l = 0.0
			if nl == 1 {
				f.x = f.lMargin
				w = f.w - f.rMargin - f.x
				wmax = (w - 2*f.cMargin) * 1000 / f.fontSize
			}
			nl++
		} else {
			i++
		}
	}
	// Last chunk
	if i != j {
		if f.isCurrentUTF8 {
			f.CellFormat(l/1000*f.fontSize, h, string([]rune(s)[j:]), "", 0, "", false, link, linkStr)
		} else {
			f.CellFormat(l/1000*f.fontSize, h, s[j:], "", 0, "", false, link, linkStr)
		}
	}
}

// Write prints text from the current position. When the right margin is
// reached (or the \n character is met) a line break occurs and text continues
// from the left margin. Upon method exit, the current position is left just at
// the end of the text.
//
// It is possible to put a link on the text.
//
// h indicates the line height in the unit of measure specified in New().
func (f *Fpdf) Write(h float64, txtStr string) {
	f.write(h, txtStr, 0, "")
}

// Writef is like Write but uses printf-style formatting. See the documentation
// for package fmt for more details on fmtStr and args.
func (f *Fpdf) Writef(h float64, fmtStr string, args ...interface{}) {
	f.write(h, sprintf(fmtStr, args...), 0, "")
}

// WriteLinkString writes text that when clicked launches an external URL. See
// Write() for argument details.
func (f *Fpdf) WriteLinkString(h float64, displayStr, targetStr string) {
	f.write(h, displayStr, 0, targetStr)
}

// WriteLinkID writes text that when clicked jumps to another location in the
// PDF. linkID is an identifier returned by AddLink(). See Write() for argument
// details.
func (f *Fpdf) WriteLinkID(h float64, displayStr string, linkID int) {
	f.write(h, displayStr, linkID, "")
}

// WriteAligned is an implementation of Write that makes it possible to align
// text.
//
// width indicates the width of the box the text will be drawn in. This is in
// the unit of measure specified in New(). If it is set to 0, the bounding box
//of the page will be taken (pageWidth - leftMargin - rightMargin).
//
// lineHeight indicates the line height in the unit of measure specified in
// New().
//
// alignStr sees to horizontal alignment of the given textStr. The options are
// "L", "C" and "R" (Left, Center, Right). The default is "L".
func (f *Fpdf) WriteAligned(width, lineHeight float64, textStr, alignStr string) {
	lMargin, _, rMargin, _ := f.GetMargins()

	pageWidth, _ := f.GetPageSize()
	if width == 0 {
		width = pageWidth - (lMargin + rMargin)
	}

	var lines []string

	if f.isCurrentUTF8 {
		lines = f.SplitText(textStr, width)
	} else {
		for _, line := range f.SplitLines([]byte(textStr), width) {
			lines = append(lines, string(line))
		}
	}

	for _, lineBt := range lines {
		lineStr := string(lineBt)
		lineWidth := f.GetStringWidth(lineStr)

		switch alignStr {
		case "C":
			f.SetLeftMargin(lMargin + ((width - lineWidth) / 2))
			f.Write(lineHeight, lineStr)
			f.SetLeftMargin(lMargin)
		case "R":
			f.SetLeftMargin(lMargin + (width - lineWidth) - 2.01*f.cMargin)
			f.Write(lineHeight, lineStr)
			f.SetLeftMargin(lMargin)
		default:
			f.SetRightMargin(pageWidth - lMargin - width)
			f.Write(lineHeight, lineStr)
			f.SetRightMargin(rMargin)
		}
	}
}

// Ln performs a line break. The current abscissa goes back to the left margin
// and the ordinate increases by the amount passed in parameter. A negative
// value of h indicates the height of the last printed cell.
//
// This method is demonstrated in the example for MultiCell.
func (f *Fpdf) Ln(h float64) {
	f.x = f.lMargin
	if h < 0 {
		f.y += f.lasth
	} else {
		f.y += h
	}
}

// ImageTypeFromMime returns the image type used in various image-related
// functions (for example, Image()) that is associated with the specified MIME
// type. For example, "jpg" is returned if mimeStr is "image/jpeg". An error is
// set if the specified MIME type is not supported.
func (f *Fpdf) ImageTypeFromMime(mimeStr string) (tp string) {
	switch mimeStr {
	case "image/png":
		tp = "png"
	case "image/jpg":
		tp = "jpg"
	case "image/jpeg":
		tp = "jpg"
	case "image/gif":
		tp = "gif"
	default:
		f.SetErrorf("unsupported image type: %s", mimeStr)
	}
	return
}

func (f *Fpdf) imageOut(info *ImageInfoType, x, y, w, h float64, allowNegativeX, flow bool, link int, linkStr string) {
	// Automatic width and height calculation if needed
	if w == 0 && h == 0 {
		// Put image at 96 dpi
		w = -96
		h = -96
	}
	if w == -1 {
		// Set image width to whatever value for dpi we read
		// from the image or that was set manually
		w = -info.dpi
	}
	if h == -1 {
		// Set image height to whatever value for dpi we read
		// from the image or that was set manually
		h = -info.dpi
	}
	if w < 0 {
		w = -info.w * 72.0 / w / f.k
	}
	if h < 0 {
		h = -info.h * 72.0 / h / f.k
	}
	if w == 0 {
		w = h * info.w / info.h
	}
	if h == 0 {
		h = w * info.h / info.w
	}
	// Flowing mode
	if flow {
		if f.y+h > f.pageBreakTrigger && !f.inHeader && !f.inFooter && f.acceptPageBreak() {
			// Automatic page break
			x2 := f.x
			f.AddPageFormat(f.curOrientation, f.curPageSize)
			if f.err != nil {
				return
			}
			f.x = x2
		}
		y = f.y
		f.y += h
	}
	if !allowNegativeX {
		if x < 0 {
			x = f.x
		}
	}
	// dbg("h %.2f", h)
	// q 85.04 0 0 NaN 28.35 NaN cm /I2 Do Q
	f.outf("q %.5f 0 0 %.5f %.5f %.5f cm /I%s Do Q", w*f.k, h*f.k, x*f.k, (f.h-(y+h))*f.k, info.i)
	if link > 0 || len(linkStr) > 0 {
		f.newLink(x, y, w, h, link, linkStr)
	}
}

// Image puts a JPEG, PNG or GIF image in the current page.
//
// Deprecated in favor of ImageOptions -- see that function for
// details on the behavior of arguments
func (f *Fpdf) Image(imageNameStr string, x, y, w, h float64, flow bool, tp string, link int, linkStr string) {
	options := ImageOptions{
		ReadDpi:   false,
		ImageType: tp,
	}
	f.ImageOptions(imageNameStr, x, y, w, h, flow, options, link, linkStr)
}

// ImageOptions puts a JPEG, PNG or GIF image in the current page. The size it
// will take on the page can be specified in different ways. If both w and h
// are 0, the image is rendered at 96 dpi. If either w or h is zero, it will be
// calculated from the other dimension so that the aspect ratio is maintained.
// If w and/or h are -1, the dpi for that dimension will be read from the
// ImageInfoType object. PNG files can contain dpi information, and if present,
// this information will be populated in the ImageInfoType object and used in
// Width, Height, and Extent calculations. Otherwise, the SetDpi function can
// be used to change the dpi from the default of 72.
//
// If w and h are any other negative value, their absolute values
// indicate their dpi extents.
//
// Supported JPEG formats are 24 bit, 32 bit and gray scale. Supported PNG
// formats are 24 bit, indexed color, and 8 bit indexed gray scale. If a GIF
// image is animated, only the first frame is rendered. Transparency is
// supported. It is possible to put a link on the image.
//
// imageNameStr may be the name of an image as registered with a call to either
// RegisterImageReader() or RegisterImage(). In the first case, the image is
// loaded using an io.Reader. This is generally useful when the image is
// obtained from some other means than as a disk-based file. In the second
// case, the image is loaded as a file. Alternatively, imageNameStr may
// directly specify a sufficiently qualified filename.
//
// However the image is loaded, if it is used more than once only one copy is
// embedded in the file.
//
// If x is negative, the current abscissa is used.
//
// If flow is true, the current y value is advanced after placing the image and
// a page break may be made if necessary.
//
// If link refers to an internal page anchor (that is, it is non-zero; see
// AddLink()), the image will be a clickable internal link. Otherwise, if
// linkStr specifies a URL, the image will be a clickable external link.
func (f *Fpdf) ImageOptions(imageNameStr string, x, y, w, h float64, flow bool, options ImageOptions, link int, linkStr string) {
	if f.err != nil {
		return
	}
	info := f.RegisterImageOptions(imageNameStr, options)
	if f.err != nil {
		return
	}
	f.imageOut(info, x, y, w, h, options.AllowNegativePosition, flow, link, linkStr)
	return
}

// RegisterImageReader registers an image, reading it from Reader r, adding it
// to the PDF file but not adding it to the page.
//
// This function is now deprecated in favor of RegisterImageOptionsReader
func (f *Fpdf) RegisterImageReader(imgName, tp string, r io.Reader) (info *ImageInfoType) {
	options := ImageOptions{
		ReadDpi:   false,
		ImageType: tp,
	}
	return f.RegisterImageOptionsReader(imgName, options, r)
}

// ImageOptions provides a place to hang any options we want to use while
// parsing an image.
//
// ImageType's possible values are (case insensitive):
// "JPG", "JPEG", "PNG" and "GIF". If empty, the type is inferred from
// the file extension.
//
// ReadDpi defines whether to attempt to automatically read the image
// dpi information from the image file. Normally, this should be set
// to true (understanding that not all images will have this info
// available). However, for backwards compatibility with previous
// versions of the API, it defaults to false.
//
// AllowNegativePosition can be set to true in order to prevent the default
// coercion of negative x values to the current x position.
type ImageOptions struct {
	ImageType             string
	ReadDpi               bool
	AllowNegativePosition bool
}

// RegisterImageOptionsReader registers an image, reading it from Reader r, adding it
// to the PDF file but not adding it to the page. Use Image() with the same
// name to add the image to the page. Note that tp should be specified in this
// case.
//
// See Image() for restrictions on the image and the options parameters.
func (f *Fpdf) RegisterImageOptionsReader(imgName string, options ImageOptions, r io.Reader) (info *ImageInfoType) {
	// Thanks, Ivan Daniluk, for generalizing this code to use the Reader interface.
	if f.err != nil {
		return
	}
	info, ok := f.images[imgName]
	if ok {
		return
	}

	// First use of this image, get info
	if options.ImageType == "" {
		f.err = fmt.Errorf("image type should be specified if reading from custom reader")
		return
	}
	options.ImageType = strings.ToLower(options.ImageType)
	if options.ImageType == "jpeg" {
		options.ImageType = "jpg"
	}
	switch options.ImageType {
	case "jpg":
		info = f.parsejpg(r)
	case "png":
		info = f.parsepng(r, options.ReadDpi)
	case "gif":
		info = f.parsegif(r)
	default:
		f.err = fmt.Errorf("unsupported image type: %s", options.ImageType)
	}
	if f.err != nil {
		return
	}

	if info.i, f.err = generateImageID(info); f.err != nil {
		return
	}
	f.images[imgName] = info

	return
}

// RegisterImage registers an image, adding it to the PDF file but not adding
// it to the page. Use Image() with the same filename to add the image to the
// page. Note that Image() calls this function, so this function is only
// necessary if you need information about the image before placing it.
//
// This function is now deprecated in favor of RegisterImageOptions.
// See Image() for restrictions on the image and the "tp" parameters.
func (f *Fpdf) RegisterImage(fileStr, tp string) (info *ImageInfoType) {
	options := ImageOptions{
		ReadDpi:   false,
		ImageType: tp,
	}
	return f.RegisterImageOptions(fileStr, options)
}

// RegisterImageOptions registers an image, adding it to the PDF file but not
// adding it to the page. Use Image() with the same filename to add the image
// to the page. Note that Image() calls this function, so this function is only
// necessary if you need information about the image before placing it. See
// Image() for restrictions on the image and the "tp" parameters.
func (f *Fpdf) RegisterImageOptions(fileStr string, options ImageOptions) (info *ImageInfoType) {
	info, ok := f.images[fileStr]
	if ok {
		return
	}

	file, err := os.Open(fileStr)
	if err != nil {
		f.err = err
		return
	}
	defer file.Close()

	// First use of this image, get info
	if options.ImageType == "" {
		pos := strings.LastIndex(fileStr, ".")
		if pos < 0 {
			f.err = fmt.Errorf("image file has no extension and no type was specified: %s", fileStr)
			return
		}
		options.ImageType = fileStr[pos+1:]
	}

	return f.RegisterImageOptionsReader(fileStr, options, file)
}

// GetImageInfo returns information about the registered image specified by
// imageStr. If the image has not been registered, nil is returned. The
// internal error is not modified by this method.
func (f *Fpdf) GetImageInfo(imageStr string) (info *ImageInfoType) {
	return f.images[imageStr]
}

// ImportObjects imports objects from gofpdi into current document
func (f *Fpdf) ImportObjects(objs map[string][]byte) {
	for k, v := range objs {
		f.importedObjs[k] = v
	}
}

// ImportObjPos imports object hash positions from gofpdi
func (f *Fpdf) ImportObjPos(objPos map[string]map[int]string) {
	for k, v := range objPos {
		f.importedObjPos[k] = v
	}
}

// putImportedTemplates writes the imported template objects to the PDF
func (f *Fpdf) putImportedTemplates() {
	nOffset := f.n + 1

	// keep track of list of sha1 hashes (to be replaced with integers)
	objsIDHash := make([]string, len(f.importedObjs))

	// actual object data with new id
	objsIDData := make([][]byte, len(f.importedObjs))

	// Populate hash slice and data slice
	i := 0
	for k, v := range f.importedObjs {
		objsIDHash[i] = k
		objsIDData[i] = v

		i++
	}

	// Populate a lookup table to get an object id from a hash
	hashToObjID := make(map[string]int, len(f.importedObjs))
	for i = 0; i < len(objsIDHash); i++ {
		hashToObjID[objsIDHash[i]] = i + nOffset
	}

	// Now, replace hashes inside data with %040d object id
	for i = 0; i < len(objsIDData); i++ {
		// get hash
		hash := objsIDHash[i]

		for pos, h := range f.importedObjPos[hash] {
			// Convert object id into a 40 character string padded with spaces
			objIDPadded := fmt.Sprintf("%40s", fmt.Sprintf("%d", hashToObjID[h]))

			// Convert objIDPadded into []byte
			objIDBytes := []byte(objIDPadded)

			// Replace sha1 hash with object id padded
			for j := pos; j < pos+40; j++ {
				objsIDData[i][j] = objIDBytes[j-pos]
			}
		}

		// Save objsIDHash so that procset dictionary has the correct object ids
		f.importedTplIDs[hash] = i + nOffset
	}

	// Now, put objects
	for i = 0; i < len(objsIDData); i++ {
		f.newobj()
		f.out(string(objsIDData[i]))
	}
}

// UseImportedTemplate uses imported template from gofpdi. It draws imported
// PDF page onto page.
func (f *Fpdf) UseImportedTemplate(tplName string, scaleX float64, scaleY float64, tX float64, tY float64) {
	f.outf("q 0 J 1 w 0 j 0 G 0 g q %.4F 0 0 %.4F %.4F %.4F cm %s Do Q Q\n", scaleX*f.k, scaleY*f.k, tX*f.k, (tY+f.h)*f.k, tplName)
}

// ImportTemplates imports gofpdi template names into importedTplObjs for
// inclusion in the procset dictionary
func (f *Fpdf) ImportTemplates(tpls map[string]string) {
	for tplName, tplID := range tpls {
		f.importedTplObjs[tplName] = tplID
	}
}

// GetConversionRatio returns the conversion ratio based on the unit given when
// creating the PDF.
func (f *Fpdf) GetConversionRatio() float64 {
	return f.k
}

// GetXY returns the abscissa and ordinate of the current position.
//
// Note: the value returned for the abscissa will be affected by the current
// cell margin. To account for this, you may need to either add the value
// returned by GetCellMargin() to it or call SetCellMargin(0) to remove the
// cell margin.
func (f *Fpdf) GetXY() (float64, float64) {
	return f.x, f.y
}

// GetX returns the abscissa of the current position.
//
// Note: the value returned will be affected by the current cell margin. To
// account for this, you may need to either add the value returned by
// GetCellMargin() to it or call SetCellMargin(0) to remove the cell margin.
func (f *Fpdf) GetX() float64 {
	return f.x
}

// SetX defines the abscissa of the current position. If the passed value is
// negative, it is relative to the right of the page.
func (f *Fpdf) SetX(x float64) {
	if x >= 0 {
		f.x = x
	} else {
		f.x = f.w + x
	}
}

// GetY returns the ordinate of the current position.
func (f *Fpdf) GetY() float64 {
	return f.y
}

// SetY moves the current abscissa back to the left margin and sets the
// ordinate. If the passed value is negative, it is relative to the bottom of
// the page.
func (f *Fpdf) SetY(y float64) {
	// dbg("SetY x %.2f, lMargin %.2f", f.x, f.lMargin)
	f.x = f.lMargin
	if y >= 0 {
		f.y = y
	} else {
		f.y = f.h + y
	}
}

// SetHomeXY is a convenience method that sets the current position to the left
// and top margins.
func (f *Fpdf) SetHomeXY() {
	f.SetY(f.tMargin)
	f.SetX(f.lMargin)
}

// SetXY defines the abscissa and ordinate of the current position. If the
// passed values are negative, they are relative respectively to the right and
// bottom of the page.
func (f *Fpdf) SetXY(x, y float64) {
	f.SetY(y)
	f.SetX(x)
}

// SetProtection applies certain constraints on the finished PDF document.
//
// actionFlag is a bitflag that controls various document operations.
// CnProtectPrint allows the document to be printed. CnProtectModify allows a
// document to be modified by a PDF editor. CnProtectCopy allows text and
// images to be copied into the system clipboard. CnProtectAnnotForms allows
// annotations and forms to be added by a PDF editor. These values can be
// combined by or-ing them together, for example,
// CnProtectCopy|CnProtectModify. This flag is advisory; not all PDF readers
// implement the constraints that this argument attempts to control.
//
// userPassStr specifies the password that will need to be provided to view the
// contents of the PDF. The permissions specified by actionFlag will apply.
//
// ownerPassStr specifies the password that will need to be provided to gain
// full access to the document regardless of the actionFlag value. An empty
// string for this argument will be replaced with a random value, effectively
// prohibiting full access to the document.
func (f *Fpdf) SetProtection(actionFlag byte, userPassStr, ownerPassStr string) {
	if f.err != nil {
		return
	}
	f.protect.setProtection(actionFlag, userPassStr, ownerPassStr)
}

// OutputAndClose sends the PDF document to the writer specified by w. This
// method will close both f and w, even if an error is detected and no document
// is produced.
func (f *Fpdf) OutputAndClose(w io.WriteCloser) error {
	f.Output(w)
	w.Close()
	return f.err
}

// OutputFileAndClose creates or truncates the file specified by fileStr and
// writes the PDF document to it. This method will close f and the newly
// written file, even if an error is detected and no document is produced.
//
// Most examples demonstrate the use of this method.
func (f *Fpdf) OutputFileAndClose(fileStr string) error {
	if f.err == nil {
		pdfFile, err := os.Create(fileStr)
		if err == nil {
			f.Output(pdfFile)
			pdfFile.Close()
		} else {
			f.err = err
		}
	}
	return f.err
}

// Output sends the PDF document to the writer specified by w. No output will
// take place if an error has occurred in the document generation process. w
// remains open after this function returns. After returning, f is in a closed
// state and its methods should not be called.
func (f *Fpdf) Output(w io.Writer) error {
	if f.err != nil {
		return f.err
	}
	// dbg("Output")
	if f.state < 3 {
		f.Close()
	}
	_, err := f.buffer.WriteTo(w)
	if err != nil {
		f.err = err
	}
	return f.err
}

func (f *Fpdf) getpagesizestr(sizeStr string) (size SizeType) {
	if f.err != nil {
		return
	}
	sizeStr = strings.ToLower(sizeStr)
	// dbg("Size [%s]", sizeStr)
	var ok bool
	size, ok = f.stdPageSizes[sizeStr]
	if ok {
		// dbg("found %s", sizeStr)
		size.Wd /= f.k
		size.Ht /= f.k

	} else {
		f.err = fmt.Errorf("unknown page size %s", sizeStr)
	}
	return
}

// GetPageSizeStr returns the SizeType for the given sizeStr (that is A4, A3, etc..)
func (f *Fpdf) GetPageSizeStr(sizeStr string) (size SizeType) {
	return f.getpagesizestr(sizeStr)
}

func (f *Fpdf) _getpagesize(size SizeType) SizeType {
	if size.Wd > size.Ht {
		size.Wd, size.Ht = size.Ht, size.Wd
	}
	return size
}

func (f *Fpdf) beginpage(orientationStr string, size SizeType) {
	if f.err != nil {
		return
	}
	f.page++
	// add the default page boxes, if any exist, to the page
	f.pageBoxes[f.page] = make(map[string]PageBox)
	for box, pb := range f.defPageBoxes {
		f.pageBoxes[f.page][box] = pb
	}
	f.pages = append(f.pages, bytes.NewBufferString(""))
	f.pageLinks = append(f.pageLinks, make([]linkType, 0, 0))
	f.pageAttachments = append(f.pageAttachments, []annotationAttach{})
	f.state = 2
	f.x = f.lMargin
	f.y = f.tMargin
	f.fontFamily = ""
	// Check page size and orientation
	if orientationStr == "" {
		orientationStr = f.defOrientation
	} else {
		orientationStr = strings.ToUpper(orientationStr[0:1])
	}
	if orientationStr != f.curOrientation || size.Wd != f.curPageSize.Wd || size.Ht != f.curPageSize.Ht {
		// New size or orientation
		if orientationStr == "P" {
			f.w = size.Wd
			f.h = size.Ht
		} else {
			f.w = size.Ht
			f.h = size.Wd
		}
		f.wPt = f.w * f.k
		f.hPt = f.h * f.k
		f.pageBreakTrigger = f.h - f.bMargin
		f.curOrientation = orientationStr
		f.curPageSize = size
	}
	if orientationStr != f.defOrientation || size.Wd != f.defPageSize.Wd || size.Ht != f.defPageSize.Ht {
		f.pageSizes[f.page] = SizeType{f.wPt, f.hPt}
	}
	return
}

func (f *Fpdf) endpage() {
	f.EndLayer()
	f.state = 1
}

// Load a font definition file from the given Reader
func (f *Fpdf) loadfont(r io.Reader) (def fontDefType) {
	if f.err != nil {
		return
	}
	// dbg("Loading font [%s]", fontStr)
	var buf bytes.Buffer
	_, err := buf.ReadFrom(r)
	if err != nil {
		f.err = err
		return
	}
	err = json.Unmarshal(buf.Bytes(), &def)
	if err != nil {
		f.err = err
		return
	}

	if def.i, err = generateFontID(def); err != nil {
		f.err = err
	}
	// dump(def)
	return
}

// Escape special characters in strings
func (f *Fpdf) escape(s string) string {
	s = strings.Replace(s, "\\", "\\\\", -1)
	s = strings.Replace(s, "(", "\\(", -1)
	s = strings.Replace(s, ")", "\\)", -1)
	s = strings.Replace(s, "\r", "\\r", -1)
	return s
}

// textstring formats a text string
func (f *Fpdf) textstring(s string) string {
	if f.protect.encrypted {
		b := []byte(s)
		f.protect.rc4(uint32(f.n), &b)
		s = string(b)
	}
	return "(" + f.escape(s) + ")"
}

func blankCount(str string) (count int) {
	l := len(str)
	for j := 0; j < l; j++ {
		if byte(' ') == str[j] {
			count++
		}
	}
	return
}

// SetUnderlineThickness accepts a multiplier for adjusting the text underline
// thickness, defaulting to 1. See SetUnderlineThickness example.
func (f *Fpdf) SetUnderlineThickness(thickness float64) {
	f.userUnderlineThickness = thickness
}

// Underline text
func (f *Fpdf) dounderline(x, y float64, txt string) string {
	up := float64(f.currentFont.Up)
	ut := float64(f.currentFont.Ut) * f.userUnderlineThickness
	w := f.GetStringWidth(txt) + f.ws*float64(blankCount(txt))
	return sprintf("%.2f %.2f %.2f %.2f re f", x*f.k,
		(f.h-(y-up/1000*f.fontSize))*f.k, w*f.k, -ut/1000*f.fontSizePt)
}

func (f *Fpdf) dostrikeout(x, y float64, txt string) string {
	up := float64(f.currentFont.Up)
	ut := float64(f.currentFont.Ut)
	w := f.GetStringWidth(txt) + f.ws*float64(blankCount(txt))
	return sprintf("%.2f %.2f %.2f %.2f re f", x*f.k,
		(f.h-(y+4*up/1000*f.fontSize))*f.k, w*f.k, -ut/1000*f.fontSizePt)
}

func bufEqual(buf []byte, str string) bool {
	return string(buf[0:len(str)]) == str
}

func be16(buf []byte) int {
	return 256*int(buf[0]) + int(buf[1])
}

func (f *Fpdf) newImageInfo() *ImageInfoType {
	// default dpi to 72 unless told otherwise
	return &ImageInfoType{scale: f.k, dpi: 72}
}

// parsejpg extracts info from io.Reader with JPEG data
// Thank you, Bruno Michel, for providing this code.
func (f *Fpdf) parsejpg(r io.Reader) (info *ImageInfoType) {
	info = f.newImageInfo()
	var (
		data bytes.Buffer
		err  error
	)
	_, err = data.ReadFrom(r)
	if err != nil {
		f.err = err
		return
	}
	info.data = data.Bytes()

	config, err := jpeg.DecodeConfig(bytes.NewReader(info.data))
	if err != nil {
		f.err = err
		return
	}
	info.w = float64(config.Width)
	info.h = float64(config.Height)
	info.f = "DCTDecode"
	info.bpc = 8
	switch config.ColorModel {
	case color.GrayModel:
		info.cs = "DeviceGray"
	case color.YCbCrModel:
		info.cs = "DeviceRGB"
	case color.CMYKModel:
		info.cs = "DeviceCMYK"
	default:
		f.err = fmt.Errorf("image JPEG buffer has unsupported color space (%v)", config.ColorModel)
		return
	}
	return
}

// parsepng extracts info from a PNG data
func (f *Fpdf) parsepng(r io.Reader, readdpi bool) (info *ImageInfoType) {
	buf, err := bufferFromReader(r)
	if err != nil {
		f.err = err
		return
	}
	return f.parsepngstream(buf, readdpi)
}

func (f *Fpdf) readBeInt32(r io.Reader) (val int32) {
	err := binary.Read(r, binary.BigEndian, &val)
	if err != nil && err != io.EOF {
		f.err = err
	}
	return
}

func (f *Fpdf) readByte(r io.Reader) (val byte) {
	err := binary.Read(r, binary.BigEndian, &val)
	if err != nil {
		f.err = err
	}
	return
}

// parsegif extracts info from a GIF data (via PNG conversion)
func (f *Fpdf) parsegif(r io.Reader) (info *ImageInfoType) {
	data, err := bufferFromReader(r)
	if err != nil {
		f.err = err
		return
	}
	var img image.Image
	img, err = gif.Decode(data)
	if err != nil {
		f.err = err
		return
	}
	pngBuf := new(bytes.Buffer)
	err = png.Encode(pngBuf, img)
	if err != nil {
		f.err = err
		return
	}
	return f.parsepngstream(pngBuf, false)
}

// newobj begins a new object
func (f *Fpdf) newobj() {
	// dbg("newobj")
	f.n++
	for j := len(f.offsets); j <= f.n; j++ {
		f.offsets = append(f.offsets, 0)
	}
	f.offsets[f.n] = f.buffer.Len()
	f.outf("%d 0 obj", f.n)
}

func (f *Fpdf) putstream(b []byte) {
	// dbg("putstream")
	if f.protect.encrypted {
		f.protect.rc4(uint32(f.n), &b)
	}
	f.out("stream")
	f.out(string(b))
	f.out("endstream")
}

// out; Add a line to the document
func (f *Fpdf) out(s string) {
	if f.state == 2 {
		f.pages[f.page].WriteString(s)
		f.pages[f.page].WriteString("\n")
	} else {
		f.buffer.WriteString(s)
		f.buffer.WriteString("\n")
	}
}

// outbuf adds a buffered line to the document
func (f *Fpdf) outbuf(r io.Reader) {
	if f.state == 2 {
		f.pages[f.page].ReadFrom(r)
		f.pages[f.page].WriteString("\n")
	} else {
		f.buffer.ReadFrom(r)
		f.buffer.WriteString("\n")
	}
}

// RawWriteStr writes a string directly to the PDF generation buffer. This is a
// low-level function that is not required for normal PDF construction. An
// understanding of the PDF specification is needed to use this method
// correctly.
func (f *Fpdf) RawWriteStr(str string) {
	f.out(str)
}

// RawWriteBuf writes the contents of the specified buffer directly to the PDF
// generation buffer. This is a low-level function that is not required for
// normal PDF construction. An understanding of the PDF specification is needed
// to use this method correctly.
func (f *Fpdf) RawWriteBuf(r io.Reader) {
	f.outbuf(r)
}

// outf adds a formatted line to the document
func (f *Fpdf) outf(fmtStr string, args ...interface{}) {
	f.out(sprintf(fmtStr, args...))
}

// SetDefaultCatalogSort sets the default value of the catalog sort flag that
// will be used when initializing a new Fpdf instance. See SetCatalogSort() for
// more details.
func SetDefaultCatalogSort(flag bool) {
	gl.catalogSort = flag
}

// SetCatalogSort sets a flag that will be used, if true, to consistently order
// the document's internal resource catalogs. This method is typically only
// used for test purposes to facilitate PDF comparison.
func (f *Fpdf) SetCatalogSort(flag bool) {
	f.catalogSort = flag
}

// SetDefaultCreationDate sets the default value of the document creation date
// that will be used when initializing a new Fpdf instance. See
// SetCreationDate() for more details.
func SetDefaultCreationDate(tm time.Time) {
	gl.creationDate = tm
}

// SetDefaultModificationDate sets the default value of the document modification date
// that will be used when initializing a new Fpdf instance. See
// SetCreationDate() for more details.
func SetDefaultModificationDate(tm time.Time) {
	gl.modDate = tm
}

// SetCreationDate fixes the document's internal CreationDate value. By
// default, the time when the document is generated is used for this value.
// This method is typically only used for testing purposes to facilitate PDF
// comparison. Specify a zero-value time to revert to the default behavior.
func (f *Fpdf) SetCreationDate(tm time.Time) {
	f.creationDate = tm
}

// SetModificationDate fixes the document's internal ModDate value.
// See `SetCreationDate` for more details.
func (f *Fpdf) SetModificationDate(tm time.Time) {
	f.modDate = tm
}

// SetJavascript adds Adobe JavaScript to the document.
func (f *Fpdf) SetJavascript(script string) {
	f.javascript = &script
}

// RegisterAlias adds an (alias, replacement) pair to the document so we can
// replace all occurrences of that alias after writing but before the document
// is closed. Functions ExampleFpdf_RegisterAlias() and
// ExampleFpdf_RegisterAlias_utf8() in fpdf_test.go demonstrate this method.
func (f *Fpdf) RegisterAlias(alias, replacement string) {
	// Note: map[string]string assignments embed literal escape ("\00") sequences
	// into utf16 key and value strings. Consequently, subsequent search/replace
	// operations will fail unexpectedly if utf8toutf16() conversions take place
	// here. Instead, conversions are deferred until the actual search/replace
	// operation takes place when the PDF output is generated.
	f.aliasMap[alias] = replacement
}

func (f *Fpdf) replaceAliases() {
	for mode := 0; mode < 2; mode++ {
		for alias, replacement := range f.aliasMap {
			if mode == 1 {
				alias = utf8toutf16(alias, false)
				replacement = utf8toutf16(replacement, false)
			}
			for n := 1; n <= f.page; n++ {
				s := f.pages[n].String()
				if strings.Contains(s, alias) {
					s = strings.Replace(s, alias, replacement, -1)
					f.pages[n].Truncate(0)
					f.pages[n].WriteString(s)
				}
			}
		}
	}
}

func (f *Fpdf) putpages() {
	var wPt, hPt float64
	var pageSize SizeType
	var ok bool
	nb := f.page
	if len(f.aliasNbPagesStr) > 0 {
		// Replace number of pages
		f.RegisterAlias(f.aliasNbPagesStr, sprintf("%d", nb))
	}
	f.replaceAliases()
	if f.defOrientation == "P" {
		wPt = f.defPageSize.Wd * f.k
		hPt = f.defPageSize.Ht * f.k
	} else {
		wPt = f.defPageSize.Ht * f.k
		hPt = f.defPageSize.Wd * f.k
	}
	pagesObjectNumbers := make([]int, nb+1) // 1-based
	for n := 1; n <= nb; n++ {
		// Page
		f.newobj()
		pagesObjectNumbers[n] = f.n // save for /Kids
		f.out("<</Type /Page")
		f.out("/Parent 1 0 R")
		pageSize, ok = f.pageSizes[n]
		if ok {
			f.outf("/MediaBox [0 0 %.2f %.2f]", pageSize.Wd, pageSize.Ht)
		}
		for t, pb := range f.pageBoxes[n] {
			f.outf("/%s [%.2f %.2f %.2f %.2f]", t, pb.X, pb.Y, pb.Wd, pb.Ht)
		}
		f.out("/Resources 2 0 R")
		// Links
		if len(f.pageLinks[n])+len(f.pageAttachments[n]) > 0 {
			var annots fmtBuffer
			annots.printf("/Annots [")
			for _, pl := range f.pageLinks[n] {
				annots.printf("<</Type /Annot /Subtype /Link /Rect [%.2f %.2f %.2f %.2f] /Border [0 0 0] ",
					pl.x, pl.y, pl.x+pl.wd, pl.y-pl.ht)
				if pl.link == 0 {
					annots.printf("/A <</S /URI /URI %s>>>>", f.textstring(pl.linkStr))
				} else {
					l := f.links[pl.link]
					var sz SizeType
					var h float64
					sz, ok = f.pageSizes[l.page]
					if ok {
						h = sz.Ht
					} else {
						h = hPt
					}
					// dbg("h [%.2f], l.y [%.2f] f.k [%.2f]\n", h, l.y, f.k)
					annots.printf("/Dest [%d 0 R /XYZ 0 %.2f null]>>", 1+2*l.page, h-l.y*f.k)
				}
			}
			f.putAttachmentAnnotationLinks(&annots, n)
			annots.printf("]")
			f.out(annots.String())
		}
		if f.pdfVersion > "1.3" {
			f.out("/Group <</Type /Group /S /Transparency /CS /DeviceRGB>>")
		}
		f.outf("/Contents %d 0 R>>", f.n+1)
		f.out("endobj")
		// Page content
		f.newobj()
		if f.compress {
			data := sliceCompress(f.pages[n].Bytes())
			f.outf("<</Filter /FlateDecode /Length %d>>", len(data))
			f.putstream(data)
		} else {
			f.outf("<</Length %d>>", f.pages[n].Len())
			f.putstream(f.pages[n].Bytes())
		}
		f.out("endobj")
	}
	// Pages root
	f.offsets[1] = f.buffer.Len()
	f.out("1 0 obj")
	f.out("<</Type /Pages")
	var kids fmtBuffer
	kids.printf("/Kids [")
	for i := 1; i <= nb; i++ {
		kids.printf("%d 0 R ", pagesObjectNumbers[i])
	}
	kids.printf("]")
	f.out(kids.String())
	f.outf("/Count %d", nb)
	f.outf("/MediaBox [0 0 %.2f %.2f]", wPt, hPt)
	f.out(">>")
	f.out("endobj")
}

func (f *Fpdf) putfonts() {
	if f.err != nil {
		return
	}
	nf := f.n
	for _, diff := range f.diffs {
		// Encodings
		f.newobj()
		f.outf("<</Type /Encoding /BaseEncoding /WinAnsiEncoding /Differences [%s]>>", diff)
		f.out("endobj")
	}
	{
		var fileList []string
		var info fontFileType
		var file string
		for file = range f.fontFiles {
			fileList = append(fileList, file)
		}
		if f.catalogSort {
			sort.SliceStable(fileList, func(i, j int) bool { return fileList[i] < fileList[j] })
		}
		for _, file = range fileList {
			info = f.fontFiles[file]
			if info.fontType != "UTF8" {
				f.newobj()
				info.n = f.n
				f.fontFiles[file] = info

				var font []byte

				if info.embedded {
					font = info.content
				} else {
					var err error
					font, err = f.loadFontFile(file)
					if err != nil {
						f.err = err
						return
					}
				}
				compressed := file[len(file)-2:] == ".z"
				if !compressed && info.length2 > 0 {
					buf := font[6:info.length1]
					buf = append(buf, font[6+info.length1+6:info.length2]...)
					font = buf
				}
				f.outf("<</Length %d", len(font))
				if compressed {
					f.out("/Filter /FlateDecode")
				}
				f.outf("/Length1 %d", info.length1)
				if info.length2 > 0 {
					f.outf("/Length2 %d /Length3 0", info.length2)
				}
				f.out(">>")
				f.putstream(font)
				f.out("endobj")
			}
		}
	}
	{
		var keyList []string
		var font fontDefType
		var key string
		for key = range f.fonts {
			keyList = append(keyList, key)
		}
		if f.catalogSort {
			sort.SliceStable(keyList, func(i, j int) bool { return keyList[i] < keyList[j] })
		}
		for _, key = range keyList {
			font = f.fonts[key]
			// Font objects
			font.N = f.n + 1
			f.fonts[key] = font
			tp := font.Tp
			name := font.Name
			switch tp {
			case "Core":
				// Core font
				f.newobj()
				f.out("<</Type /Font")
				f.outf("/BaseFont /%s", name)
				f.out("/Subtype /Type1")
				if name != "Symbol" && name != "ZapfDingbats" {
					f.out("/Encoding /WinAnsiEncoding")
				}
				f.out(">>")
				f.out("endobj")
			case "Type1":
				fallthrough
			case "TrueType":
				// Additional Type1 or TrueType/OpenType font
				f.newobj()
				f.out("<</Type /Font")
				f.outf("/BaseFont /%s", name)
				f.outf("/Subtype /%s", tp)
				f.out("/FirstChar 32 /LastChar 255")
				f.outf("/Widths %d 0 R", f.n+1)
				f.outf("/FontDescriptor %d 0 R", f.n+2)
				if font.DiffN > 0 {
					f.outf("/Encoding %d 0 R", nf+font.DiffN)
				} else {
					f.out("/Encoding /WinAnsiEncoding")
				}
				f.out(">>")
				f.out("endobj")
				// Widths
				f.newobj()
				var s fmtBuffer
				s.WriteString("[")
				for j := 32; j < 256; j++ {
					s.printf("%d ", font.Cw[j])
				}
				s.WriteString("]")
				f.out(s.String())
				f.out("endobj")
				// Descriptor
				f.newobj()
				s.Truncate(0)
				s.printf("<</Type /FontDescriptor /FontName /%s ", name)
				s.printf("/Ascent %d ", font.Desc.Ascent)
				s.printf("/Descent %d ", font.Desc.Descent)
				s.printf("/CapHeight %d ", font.Desc.CapHeight)
				s.printf("/Flags %d ", font.Desc.Flags)
				s.printf("/FontBBox [%d %d %d %d] ", font.Desc.FontBBox.Xmin, font.Desc.FontBBox.Ymin,
					font.Desc.FontBBox.Xmax, font.Desc.FontBBox.Ymax)
				s.printf("/ItalicAngle %d ", font.Desc.ItalicAngle)
				s.printf("/StemV %d ", font.Desc.StemV)
				s.printf("/MissingWidth %d ", font.Desc.MissingWidth)
				var suffix string
				if tp != "Type1" {
					suffix = "2"
				}
				s.printf("/FontFile%s %d 0 R>>", suffix, f.fontFiles[font.File].n)
				f.out(s.String())
				f.out("endobj")
			case "UTF8":
				fontName := "utf8" + font.Name
				usedRunes := font.usedRunes
				delete(usedRunes, 0)
				utf8FontStream := font.utf8File.GenerateCutFont(usedRunes)
				utf8FontSize := len(utf8FontStream)
				compressedFontStream := sliceCompress(utf8FontStream)
				CodeSignDictionary := font.utf8File.CodeSymbolDictionary
				delete(CodeSignDictionary, 0)

				f.newobj()
				f.out(fmt.Sprintf("<</Type /Font\n/Subtype /Type0\n/BaseFont /%s\n/Encoding /Identity-H\n/DescendantFonts [%d 0 R]\n/ToUnicode %d 0 R>>\n"+"endobj", fontName, f.n+1, f.n+2))

				f.newobj()
				f.out("<</Type /Font\n/Subtype /CIDFontType2\n/BaseFont /" + fontName + "\n" +
					"/CIDSystemInfo " + strconv.Itoa(f.n+2) + " 0 R\n/FontDescriptor " + strconv.Itoa(f.n+3) + " 0 R")
				if font.Desc.MissingWidth != 0 {
					f.out("/DW " + strconv.Itoa(font.Desc.MissingWidth) + "")
				}
				f.generateCIDFontMap(&font, font.utf8File.LastRune)
				f.out("/CIDToGIDMap " + strconv.Itoa(f.n+4) + " 0 R>>")
				f.out("endobj")

				f.newobj()
				f.out("<</Length " + strconv.Itoa(len(toUnicode)) + ">>")
				f.putstream([]byte(toUnicode))
				f.out("endobj")

				// CIDInfo
				f.newobj()
				f.out("<</Registry (Adobe)\n/Ordering (UCS)\n/Supplement 0>>")
				f.out("endobj")

				// Font descriptor
				f.newobj()
				var s fmtBuffer
				s.printf("<</Type /FontDescriptor /FontName /%s\n /Ascent %d", fontName, font.Desc.Ascent)
				s.printf(" /Descent %d", font.Desc.Descent)
				s.printf(" /CapHeight %d", font.Desc.CapHeight)
				v := font.Desc.Flags
				v = v | 4
				v = v &^ 32
				s.printf(" /Flags %d", v)
				s.printf("/FontBBox [%d %d %d %d] ", font.Desc.FontBBox.Xmin, font.Desc.FontBBox.Ymin,
					font.Desc.FontBBox.Xmax, font.Desc.FontBBox.Ymax)
				s.printf(" /ItalicAngle %d", font.Desc.ItalicAngle)
				s.printf(" /StemV %d", font.Desc.StemV)
				s.printf(" /MissingWidth %d", font.Desc.MissingWidth)
				s.printf("/FontFile2 %d 0 R", f.n+2)
				s.printf(">>")
				f.out(s.String())
				f.out("endobj")

				// Embed CIDToGIDMap
				cidToGidMap := make([]byte, 256*256*2)

				for cc, glyph := range CodeSignDictionary {
					cidToGidMap[cc*2] = byte(glyph >> 8)
					cidToGidMap[cc*2+1] = byte(glyph & 0xFF)
				}

				cidToGidMap = sliceCompress(cidToGidMap)
				f.newobj()
				f.out("<</Length " + strconv.Itoa(len(cidToGidMap)) + "/Filter /FlateDecode>>")
				f.putstream(cidToGidMap)
				f.out("endobj")

				//Font file
				f.newobj()
				f.out("<</Length " + strconv.Itoa(len(compressedFontStream)))
				f.out("/Filter /FlateDecode")
				f.out("/Length1 " + strconv.Itoa(utf8FontSize))
				f.out(">>")
				f.putstream(compressedFontStream)
				f.out("endobj")
			default:
				f.err = fmt.Errorf("unsupported font type: %s", tp)
				return
			}
		}
	}
	return
}

func (f *Fpdf) generateCIDFontMap(font *fontDefType, LastRune int) {
	rangeID := 0
	cidArray := make(map[int]*untypedKeyMap)
	cidArrayKeys := make([]int, 0)
	prevCid := -2
	prevWidth := -1
	interval := false
	startCid := 1
	cwLen := LastRune + 1

	// for each character
	for cid := startCid; cid < cwLen; cid++ {
		if font.Cw[cid] == 0x00 {
			continue
		}
		width := font.Cw[cid]
		if width == 65535 {
			width = 0
		}
		if numb, OK := font.usedRunes[cid]; cid > 255 && (!OK || numb == 0) {
			continue
		}

		if cid == prevCid+1 {
			if width == prevWidth {

				if width == cidArray[rangeID].get(0) {
					cidArray[rangeID].put(nil, width)
				} else {
					cidArray[rangeID].pop()
					rangeID = prevCid
					r := untypedKeyMap{
						valueSet: make([]int, 0),
						keySet:   make([]interface{}, 0),
					}
					cidArray[rangeID] = &r
					cidArrayKeys = append(cidArrayKeys, rangeID)
					cidArray[rangeID].put(nil, prevWidth)
					cidArray[rangeID].put(nil, width)
				}
				interval = true
				cidArray[rangeID].put("interval", 1)
			} else {
				if interval {
					// new range
					rangeID = cid
					r := untypedKeyMap{
						valueSet: make([]int, 0),
						keySet:   make([]interface{}, 0),
					}
					cidArray[rangeID] = &r
					cidArrayKeys = append(cidArrayKeys, rangeID)
					cidArray[rangeID].put(nil, width)
				} else {
					cidArray[rangeID].put(nil, width)
				}
				interval = false
			}
		} else {
			rangeID = cid
			r := untypedKeyMap{
				valueSet: make([]int, 0),
				keySet:   make([]interface{}, 0),
			}
			cidArray[rangeID] = &r
			cidArrayKeys = append(cidArrayKeys, rangeID)
			cidArray[rangeID].put(nil, width)
			interval = false
		}
		prevCid = cid
		prevWidth = width

	}
	previousKey := -1
	nextKey := -1
	isInterval := false
	for g := 0; g < len(cidArrayKeys); {
		key := cidArrayKeys[g]
		ws := *cidArray[key]
		cws := len(ws.keySet)
		if (key == nextKey) && (!isInterval) && (ws.getIndex("interval") < 0 || cws < 4) {
			if cidArray[key].getIndex("interval") >= 0 {
				cidArray[key].delete("interval")
			}
			cidArray[previousKey] = arrayMerge(cidArray[previousKey], cidArray[key])
			cidArrayKeys = remove(cidArrayKeys, key)
		} else {
			g++
			previousKey = key
		}
		nextKey = key + cws
		// ui := ws.getIndex("interval")
		// ui = ui + 1
		if ws.getIndex("interval") >= 0 {
			if cws > 3 {
				isInterval = true
			} else {
				isInterval = false
			}
			cidArray[key].delete("interval")
			nextKey--
		} else {
			isInterval = false
		}
	}
	var w fmtBuffer
	for _, k := range cidArrayKeys {
		ws := cidArray[k]
		if len(arrayCountValues(ws.valueSet)) == 1 {
			w.printf(" %d %d %d", k, k+len(ws.valueSet)-1, ws.get(0))
		} else {
			w.printf(" %d [ %s ]\n", k, implode(" ", ws.valueSet))
		}
	}
	f.out("/W [" + w.String() + " ]")
}

func implode(sep string, arr []int) string {
	var s fmtBuffer
	for i := 0; i < len(arr)-1; i++ {
		s.printf("%v", arr[i])
		s.printf(sep)
	}
	if len(arr) > 0 {
		s.printf("%v", arr[len(arr)-1])
	}
	return s.String()
}

// arrayCountValues counts the occurrences of each item in the $mp array.
func arrayCountValues(mp []int) map[int]int {
	answer := make(map[int]int)
	for _, v := range mp {
		answer[v] = answer[v] + 1
	}
	return answer
}

func (f *Fpdf) loadFontFile(name string) ([]byte, error) {
	if f.fontLoader != nil {
		reader, err := f.fontLoader.Open(name)
		if err == nil {
			data, err := ioutil.ReadAll(reader)
			if closer, ok := reader.(io.Closer); ok {
				closer.Close()
			}
			return data, err
		}
	}
	return ioutil.ReadFile(path.Join(f.fontpath, name))
}

func (f *Fpdf) putimages() {
	var keyList []string
	var key string
	for key = range f.images {
		keyList = append(keyList, key)
	}

	// Sort the keyList []string by the corresponding image's width.
	if f.catalogSort {
		sort.SliceStable(keyList, func(i, j int) bool { return f.images[keyList[i]].w < f.images[keyList[j]].w })
	}

	// Maintain a list of inserted image SHA-1 hashes, with their
	// corresponding object ID number.
	insertedImages := map[string]int{}

	for _, key = range keyList {
		image := f.images[key]

		// Check if this image has already been inserted using it's SHA-1 hash.
		insertedImageObjN, isFound := insertedImages[image.i]

		// If found, skip inserting the image as a new object, and
		// use the object ID from the insertedImages map.
		// If not, insert the image into the PDF and store the object ID.
		if isFound {
			image.n = insertedImageObjN
		} else {
			f.putimage(image)
			insertedImages[image.i] = image.n
		}
	}
}

func (f *Fpdf) putimage(info *ImageInfoType) {
	f.newobj()
	info.n = f.n
	f.out("<</Type /XObject")
	f.out("/Subtype /Image")
	f.outf("/Width %d", int(info.w))
	f.outf("/Height %d", int(info.h))
	if info.cs == "Indexed" {
		f.outf("/ColorSpace [/Indexed /DeviceRGB %d %d 0 R]", len(info.pal)/3-1, f.n+1)
	} else {
		f.outf("/ColorSpace /%s", info.cs)
		if info.cs == "DeviceCMYK" {
			f.out("/Decode [1 0 1 0 1 0 1 0]")
		}
	}
	f.outf("/BitsPerComponent %d", info.bpc)
	if len(info.f) > 0 {
		f.outf("/Filter /%s", info.f)
	}
	if len(info.dp) > 0 {
		f.outf("/DecodeParms <<%s>>", info.dp)
	}
	if len(info.trns) > 0 {
		var trns fmtBuffer
		for _, v := range info.trns {
			trns.printf("%d %d ", v, v)
		}
		f.outf("/Mask [%s]", trns.String())
	}
	if info.smask != nil {
		f.outf("/SMask %d 0 R", f.n+1)
	}
	f.outf("/Length %d>>", len(info.data))
	f.putstream(info.data)
	f.out("endobj")
	// 	Soft mask
	if len(info.smask) > 0 {
		smask := &ImageInfoType{
			w:     info.w,
			h:     info.h,
			cs:    "DeviceGray",
			bpc:   8,
			f:     info.f,
			dp:    sprintf("/Predictor 15 /Colors 1 /BitsPerComponent 8 /Columns %d", int(info.w)),
			data:  info.smask,
			scale: f.k,
		}
		f.putimage(smask)
	}
	// 	Palette
	if info.cs == "Indexed" {
		f.newobj()
		if f.compress {
			pal := sliceCompress(info.pal)
			f.outf("<</Filter /FlateDecode /Length %d>>", len(pal))
			f.putstream(pal)
		} else {
			f.outf("<</Length %d>>", len(info.pal))
			f.putstream(info.pal)
		}
		f.out("endobj")
	}
}

func (f *Fpdf) putxobjectdict() {
	{
		var image *ImageInfoType
		var key string
		var keyList []string
		for key = range f.images {
			keyList = append(keyList, key)
		}
		if f.catalogSort {
			sort.SliceStable(keyList, func(i, j int) bool { return f.images[keyList[i]].i < f.images[keyList[j]].i })
		}
		for _, key = range keyList {
			image = f.images[key]
			f.outf("/I%s %d 0 R", image.i, image.n)
		}
	}
	{
		var keyList []string
		var key string
		var tpl Template
		keyList = templateKeyList(f.templates, f.catalogSort)
		for _, key = range keyList {
			tpl = f.templates[key]
			// for _, tpl := range f.templates {
			id := tpl.ID()
			if objID, ok := f.templateObjects[id]; ok {
				f.outf("/TPL%s %d 0 R", id, objID)
			}
		}
	}
	{
		for tplName, objID := range f.importedTplObjs {
			// here replace obj id hash with n
			f.outf("%s %d 0 R", tplName, f.importedTplIDs[objID])
		}
	}
}

func (f *Fpdf) putresourcedict() {
	f.out("/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]")
	f.out("/Font <<")
	{
		var keyList []string
		var font fontDefType
		var key string
		for key = range f.fonts {
			keyList = append(keyList, key)
		}
		if f.catalogSort {
			sort.SliceStable(keyList, func(i, j int) bool { return f.fonts[keyList[i]].i < f.fonts[keyList[j]].i })
		}
		for _, key = range keyList {
			font = f.fonts[key]
			f.outf("/F%s %d 0 R", font.i, font.N)
		}
	}
	f.out(">>")
	f.out("/XObject <<")
	f.putxobjectdict()
	f.out(">>")
	count := len(f.blendList)
	if count > 1 {
		f.out("/ExtGState <<")
		for j := 1; j < count; j++ {
			f.outf("/GS%d %d 0 R", j, f.blendList[j].objNum)
		}
		f.out(">>")
	}
	count = len(f.gradientList)
	if count > 1 {
		f.out("/Shading <<")
		for j := 1; j < count; j++ {
			f.outf("/Sh%d %d 0 R", j, f.gradientList[j].objNum)
		}
		f.out(">>")
	}
	// Layers
	f.layerPutResourceDict()
	f.spotColorPutResourceDict()
}

func (f *Fpdf) putBlendModes() {
	count := len(f.blendList)
	for j := 1; j < count; j++ {
		bl := f.blendList[j]
		f.newobj()
		f.blendList[j].objNum = f.n
		f.outf("<</Type /ExtGState /ca %s /CA %s /BM /%s>>",
			bl.fillStr, bl.strokeStr, bl.modeStr)
		f.out("endobj")
	}
}

func (f *Fpdf) putGradients() {
	count := len(f.gradientList)
	for j := 1; j < count; j++ {
		var f1 int
		gr := f.gradientList[j]
		if gr.tp == 2 || gr.tp == 3 {
			f.newobj()
			f.outf("<</FunctionType 2 /Domain [0.0 1.0] /C0 [%s] /C1 [%s] /N 1>>", gr.clr1Str, gr.clr2Str)
			f.out("endobj")
			f1 = f.n
		}
		f.newobj()
		f.outf("<</ShadingType %d /ColorSpace /DeviceRGB", gr.tp)
		if gr.tp == 2 {
			f.outf("/Coords [%.5f %.5f %.5f %.5f] /Function %d 0 R /Extend [true true]>>",
				gr.x1, gr.y1, gr.x2, gr.y2, f1)
		} else if gr.tp == 3 {
			f.outf("/Coords [%.5f %.5f 0 %.5f %.5f %.5f] /Function %d 0 R /Extend [true true]>>",
				gr.x1, gr.y1, gr.x2, gr.y2, gr.r, f1)
		}
		f.out("endobj")
		f.gradientList[j].objNum = f.n
	}
}

func (f *Fpdf) putjavascript() {
	if f.javascript == nil {
		return
	}

	f.newobj()
	f.nJs = f.n
	f.out("<<")
	f.outf("/Names [(EmbeddedJS) %d 0 R]", f.n+1)
	f.out(">>")
	f.out("endobj")
	f.newobj()
	f.out("<<")
	f.out("/S /JavaScript")
	f.outf("/JS %s", f.textstring(*f.javascript))
	f.out(">>")
	f.out("endobj")
}

func (f *Fpdf) putresources() {
	if f.err != nil {
		return
	}
	f.layerPutLayers()
	f.putBlendModes()
	f.putGradients()
	f.putSpotColors()
	f.putfonts()
	if f.err != nil {
		return
	}
	f.putimages()
	f.putTemplates()
	f.putImportedTemplates() // gofpdi
	// 	Resource dictionary
	f.offsets[2] = f.buffer.Len()
	f.out("2 0 obj")
	f.out("<<")
	f.putresourcedict()
	f.out(">>")
	f.out("endobj")
	f.putjavascript()
	if f.protect.encrypted {
		f.newobj()
		f.protect.objNum = f.n
		f.out("<<")
		f.out("/Filter /Standard")
		f.out("/V 1")
		f.out("/R 2")
		f.outf("/O (%s)", f.escape(string(f.protect.oValue)))
		f.outf("/U (%s)", f.escape(string(f.protect.uValue)))
		f.outf("/P %d", f.protect.pValue)
		f.out(">>")
		f.out("endobj")
	}
	return
}

// returns Now() if tm is zero
func timeOrNow(tm time.Time) time.Time {
	if tm.IsZero() {
		return time.Now()
	}
	return tm
}

func (f *Fpdf) putinfo() {
	if len(f.producer) > 0 {
		f.outf("/Producer %s", f.textstring(f.producer))
	}
	if len(f.title) > 0 {
		f.outf("/Title %s", f.textstring(f.title))
	}
	if len(f.subject) > 0 {
		f.outf("/Subject %s", f.textstring(f.subject))
	}
	if len(f.author) > 0 {
		f.outf("/Author %s", f.textstring(f.author))
	}
	if len(f.keywords) > 0 {
		f.outf("/Keywords %s", f.textstring(f.keywords))
	}
	if len(f.creator) > 0 {
		f.outf("/Creator %s", f.textstring(f.creator))
	}
	creation := timeOrNow(f.creationDate)
	f.outf("/CreationDate %s", f.textstring("D:"+creation.Format("20060102150405")))
	mod := timeOrNow(f.modDate)
	f.outf("/ModDate %s", f.textstring("D:"+mod.Format("20060102150405")))
}

func (f *Fpdf) putcatalog() {
	f.out("/Type /Catalog")
	f.out("/Pages 1 0 R")
	switch f.zoomMode {
	case "fullpage":
		f.out("/OpenAction [3 0 R /Fit]")
	case "fullwidth":
		f.out("/OpenAction [3 0 R /FitH null]")
	case "real":
		f.out("/OpenAction [3 0 R /XYZ null null 1]")
	}
	// } 	else if !is_string($this->zoomMode))
	// 		$this->out('/OpenAction [3 0 R /XYZ null null '.sprintf('%.2f',$this->zoomMode/100).']');
	switch f.layoutMode {
	case "single", "SinglePage":
		f.out("/PageLayout /SinglePage")
	case "continuous", "OneColumn":
		f.out("/PageLayout /OneColumn")
	case "two", "TwoColumnLeft":
		f.out("/PageLayout /TwoColumnLeft")
	case "TwoColumnRight":
		f.out("/PageLayout /TwoColumnRight")
	case "TwoPageLeft", "TwoPageRight":
		if f.pdfVersion < "1.5" {
			f.pdfVersion = "1.5"
		}
		f.out("/PageLayout /" + f.layoutMode)
	}
	// Bookmarks
	if len(f.outlines) > 0 {
		f.outf("/Outlines %d 0 R", f.outlineRoot)
		f.out("/PageMode /UseOutlines")
	}
	// Layers
	f.layerPutCatalog()
	// Name dictionary :
	//	-> Javascript
	//	-> Embedded files
	f.out("/Names <<")
	// JavaScript
	if f.javascript != nil {
		f.outf("/JavaScript %d 0 R", f.nJs)
	}
	// Embedded files
	f.outf("/EmbeddedFiles %s", f.getEmbeddedFiles())
	f.out(">>")
}

func (f *Fpdf) putheader() {
	if len(f.blendMap) > 0 && f.pdfVersion < "1.4" {
		f.pdfVersion = "1.4"
	}
	f.outf("%%PDF-%s", f.pdfVersion)
}

func (f *Fpdf) puttrailer() {
	f.outf("/Size %d", f.n+1)
	f.outf("/Root %d 0 R", f.n)
	f.outf("/Info %d 0 R", f.n-1)
	if f.protect.encrypted {
		f.outf("/Encrypt %d 0 R", f.protect.objNum)
		f.out("/ID [()()]")
	}
}

func (f *Fpdf) putxmp() {
	if len(f.xmp) == 0 {
		return
	}
	f.newobj()
	f.outf("<< /Type /Metadata /Subtype /XML /Length %d >>", len(f.xmp))
	f.putstream(f.xmp)
	f.out("endobj")
}

func (f *Fpdf) putbookmarks() {
	nb := len(f.outlines)
	if nb > 0 {
		lru := make(map[int]int)
		level := 0
		for i, o := range f.outlines {
			if o.level > 0 {
				parent := lru[o.level-1]
				f.outlines[i].parent = parent
				f.outlines[parent].last = i
				if o.level > level {
					f.outlines[parent].first = i
				}
			} else {
				f.outlines[i].parent = nb
			}
			if o.level <= level && i > 0 {
				prev := lru[o.level]
				f.outlines[prev].next = i
				f.outlines[i].prev = prev
			}
			lru[o.level] = i
			level = o.level
		}
		n := f.n + 1
		for _, o := range f.outlines {
			f.newobj()
			f.outf("<</Title %s", f.textstring(o.text))
			f.outf("/Parent %d 0 R", n+o.parent)
			if o.prev != -1 {
				f.outf("/Prev %d 0 R", n+o.prev)
			}
			if o.next != -1 {
				f.outf("/Next %d 0 R", n+o.next)
			}
			if o.first != -1 {
				f.outf("/First %d 0 R", n+o.first)
			}
			if o.last != -1 {
				f.outf("/Last %d 0 R", n+o.last)
			}
			f.outf("/Dest [%d 0 R /XYZ 0 %.2f null]", 1+2*o.p, (f.h-o.y)*f.k)
			f.out("/Count 0>>")
			f.out("endobj")
		}
		f.newobj()
		f.outlineRoot = f.n
		f.outf("<</Type /Outlines /First %d 0 R", n)
		f.outf("/Last %d 0 R>>", n+lru[0])
		f.out("endobj")
	}
}

func (f *Fpdf) enddoc() {
	if f.err != nil {
		return
	}
	f.layerEndDoc()
	f.putheader()
	// Embedded files
	f.putAttachments()
	f.putAnnotationsAttachments()
	f.putpages()
	f.putresources()
	if f.err != nil {
		return
	}
	// Bookmarks
	f.putbookmarks()
	// Metadata
	f.putxmp()
	// 	Info
	f.newobj()
	f.out("<<")
	f.putinfo()
	f.out(">>")
	f.out("endobj")
	// 	Catalog
	f.newobj()
	f.out("<<")
	f.putcatalog()
	f.out(">>")
	f.out("endobj")
	// Cross-ref
	o := f.buffer.Len()
	f.out("xref")
	f.outf("0 %d", f.n+1)
	f.out("0000000000 65535 f ")
	for j := 1; j <= f.n; j++ {
		f.outf("%010d 00000 n ", f.offsets[j])
	}
	// Trailer
	f.out("trailer")
	f.out("<<")
	f.puttrailer()
	f.out(">>")
	f.out("startxref")
	f.outf("%d", o)
	f.out("%%EOF")
	f.state = 3
	return
}

// Path Drawing

// MoveTo moves the stylus to (x, y) without drawing the path from the
// previous point. Paths must start with a MoveTo to set the original
// stylus location or the result is undefined.
//
// Create a "path" by moving a virtual stylus around the page (with
// MoveTo, LineTo, CurveTo, CurveBezierCubicTo, ArcTo & ClosePath)
// then draw it or  fill it in (with DrawPath). The main advantage of
// using the path drawing routines rather than multiple Fpdf.Line is
// that PDF creates nice line joins at the angles, rather than just
// overlaying the lines.
func (f *Fpdf) MoveTo(x, y float64) {
	f.point(x, y)
	f.x, f.y = x, y
}

// LineTo creates a line from the current stylus location to (x, y), which
// becomes the new stylus location. Note that this only creates the line in
// the path; it does not actually draw the line on the page.
//
// The MoveTo() example demonstrates this method.
func (f *Fpdf) LineTo(x, y float64) {
	f.outf("%.2f %.2f l", x*f.k, (f.h-y)*f.k)
	f.x, f.y = x, y
}

// CurveTo creates a single-segment quadratic Bézier curve. The curve starts at
// the current stylus location and ends at the point (x, y). The control point
// (cx, cy) specifies the curvature. At the start point, the curve is tangent
// to the straight line between the current stylus location and the control
// point. At the end point, the curve is tangent to the straight line between
// the end point and the control point.
//
// The MoveTo() example demonstrates this method.
func (f *Fpdf) CurveTo(cx, cy, x, y float64) {
	f.outf("%.5f %.5f %.5f %.5f v", cx*f.k, (f.h-cy)*f.k, x*f.k, (f.h-y)*f.k)
	f.x, f.y = x, y
}

// CurveBezierCubicTo creates a single-segment cubic Bézier curve. The curve
// starts at the current stylus location and ends at the point (x, y). The
// control points (cx0, cy0) and (cx1, cy1) specify the curvature. At the
// current stylus, the curve is tangent to the straight line between the
// current stylus location and the control point (cx0, cy0). At the end point,
// the curve is tangent to the straight line between the end point and the
// control point (cx1, cy1).
//
// The MoveTo() example demonstrates this method.
func (f *Fpdf) CurveBezierCubicTo(cx0, cy0, cx1, cy1, x, y float64) {
	f.curve(cx0, cy0, cx1, cy1, x, y)
	f.x, f.y = x, y
}

// ClosePath creates a line from the current location to the last MoveTo point
// (if not the same) and mark the path as closed so the first and last lines
// join nicely.
//
// The MoveTo() example demonstrates this method.
func (f *Fpdf) ClosePath() {
	f.outf("h")
}

// DrawPath actually draws the path on the page.
//
// styleStr can be "F" for filled, "D" for outlined only, or "DF" or "FD" for
// outlined and filled. An empty string will be replaced with "D".
// Path-painting operators as defined in the PDF specification are also
// allowed: "S" (Stroke the path), "s" (Close and stroke the path),
// "f" (fill the path, using the nonzero winding number), "f*"
// (Fill the path, using the even-odd rule), "B" (Fill and then stroke
// the path, using the nonzero winding number rule), "B*" (Fill and
// then stroke the path, using the even-odd rule), "b" (Close, fill,
// and then stroke the path, using the nonzero winding number rule) and
// "b*" (Close, fill, and then stroke the path, using the even-odd
// rule).
// Drawing uses the current draw color, line width, and cap style
// centered on the
// path. Filling uses the current fill color.
//
// The MoveTo() example demonstrates this method.
func (f *Fpdf) DrawPath(styleStr string) {
	f.outf(fillDrawOp(styleStr))
}

// ArcTo draws an elliptical arc centered at point (x, y). rx and ry specify its
// horizontal and vertical radii. If the start of the arc is not at
// the current position, a connecting line will be drawn.
//
// degRotate specifies the angle that the arc will be rotated. degStart and
// degEnd specify the starting and ending angle of the arc. All angles are
// specified in degrees and measured counter-clockwise from the 3 o'clock
// position.
//
// styleStr can be "F" for filled, "D" for outlined only, or "DF" or "FD" for
// outlined and filled. An empty string will be replaced with "D". Drawing uses
// the current draw color, line width, and cap style centered on the arc's
// path. Filling uses the current fill color.
//
// The MoveTo() example demonstrates this method.
func (f *Fpdf) ArcTo(x, y, rx, ry, degRotate, degStart, degEnd float64) {
	f.arc(x, y, rx, ry, degRotate, degStart, degEnd, "", true)
}

func (f *Fpdf) arc(x, y, rx, ry, degRotate, degStart, degEnd float64,
	styleStr string, path bool) {
	x *= f.k
	y = (f.h - y) * f.k
	rx *= f.k
	ry *= f.k
	segments := int(degEnd-degStart) / 60
	if segments < 2 {
		segments = 2
	}
	angleStart := degStart * math.Pi / 180
	angleEnd := degEnd * math.Pi / 180
	angleTotal := angleEnd - angleStart
	dt := angleTotal / float64(segments)
	dtm := dt / 3
	if degRotate != 0 {
		a := -degRotate * math.Pi / 180
		f.outf("q %.5f %.5f %.5f %.5f %.5f %.5f cm",
			math.Cos(a), -1*math.Sin(a),
			math.Sin(a), math.Cos(a), x, y)
		x = 0
		y = 0
	}
	t := angleStart
	a0 := x + rx*math.Cos(t)
	b0 := y + ry*math.Sin(t)
	c0 := -rx * math.Sin(t)
	d0 := ry * math.Cos(t)
	sx := a0 / f.k // start point of arc
	sy := f.h - (b0 / f.k)
	if path {
		if f.x != sx || f.y != sy {
			// Draw connecting line to start point
			f.LineTo(sx, sy)
		}
	} else {
		f.point(sx, sy)
	}
	for j := 1; j <= segments; j++ {
		// Draw this bit of the total curve
		t = (float64(j) * dt) + angleStart
		a1 := x + rx*math.Cos(t)
		b1 := y + ry*math.Sin(t)
		c1 := -rx * math.Sin(t)
		d1 := ry * math.Cos(t)
		f.curve((a0+(c0*dtm))/f.k,
			f.h-((b0+(d0*dtm))/f.k),
			(a1-(c1*dtm))/f.k,
			f.h-((b1-(d1*dtm))/f.k),
			a1/f.k,
			f.h-(b1/f.k))
		a0 = a1
		b0 = b1
		c0 = c1
		d0 = d1
		if path {
			f.x = a1 / f.k
			f.y = f.h - (b1 / f.k)
		}
	}
	if !path {
		f.out(fillDrawOp(styleStr))
	}
	if degRotate != 0 {
		f.out("Q")
	}
}