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/*!
\page gdcmpdf Tool to convert PDF to PDF/DICOM.
\section synopsis SYNOPSIS
\verbatim
gdcmpdf [options] file-in file-out
\endverbatim
\section description DESCRIPTION
The \b gdcmpdf tool convert a PDF file (any PDF version) into an encapsulated PDF/DICOM file.
By default it will try to read the PDF meta information stored in the PDF and convert this
information to some specific DICOM fields (see below). However it may fails (eg. wrong
password on encrypted PDF file) in which case empty value are used.
\section parameters PARAMETERS
\verbatim
file-in PDF input filename
file-out DICOM output filename
\endverbatim
\section options OPTIONS
\subsection general_options general options
\verbatim
-h --help
print this help text and exit
-v --version
print version information and exit
-V --verbose
verbose mode (warning+error).
-W --warning
warning mode, print warning information
-E --error
error mode, print error information
-D --debug
debug mode, print debug information
\endverbatim
\section usage_example Usage Example
\verbatim
$ wget http://gdcm.sourceforge.net/gdcm.pdf
$ gdcmpdf gdcm.pdf gdcm.dcm
\endverbatim
To re-extract the encapsulated PDF file:
\verbatim
$ gdcmraw -i gdcm.dcm -t 42,11 -o gdcm.dcm.pdf
$ diff gdcm.pdf gdcm.dcm.pdf
\endverbatim
\section pdf_mapping PDF Info Mapping
Here is how the PDF info is mapped to DICOM information (typical pdfinfo output):
\verbatim
Title: GDCM Reference Manual
Subject: Grassroots DICOM API reference
Keywords: GDCM,DICOM,JPEG,Lossless JPEG,JPEG-LS,J2K,JPEG 2000,RLE
Author: Mathieu Malaterre and co.
Creator: LaTeX with hyperref package
Producer: pdfeTeX-1.21a
CreationDate: Tue Apr 28 15:34:26 2009
Tagged: no
Pages: 1188
Encrypted: no
Page size: 612 x 792 pts (letter)
File size: 13756841 bytes
Optimized: yes
PDF version: 1.4
\endverbatim
Converted to DICOM this leads to:
\verbatim
# Dicom-Data-Set
# Used TransferSyntax: Little Endian Explicit
(0008,0005) CS [ISO_IR 100] # 10, 1 SpecificCharacterSet
(0008,0012) DA [20090428] # 8, 1 InstanceCreationDate
(0008,0013) TM [182550.302631] # 14, 1 InstanceCreationTime
(0008,0016) UI =EncapsulatedPDFStorage # 30, 1 SOPClassUID
(0008,0018) UI [1.2.826.0.1.3680043.2.1143.776842935192792959289022034349197114] # 64, 1 SOPInstanceUID
(0008,0020) DA [20090428] # 8, 1 StudyDate
(0008,0023) DA [20090428] # 8, 1 ContentDate
(0008,002a) DT [20090428153437.000000] # 22, 1 AcquisitionDateTime
(0008,0030) TM [182550.302160] # 14, 1 StudyTime
(0008,0033) TM [153426.000000] # 14, 1 ContentTime
(0008,0050) SH (no value available) # 0, 0 AccessionNumber
(0008,0060) CS [OT] # 2, 1 Modality
(0008,0064) CS [WSD] # 4, 1 ConversionType
(0008,0070) LO [LaTeX with hyperref package] # 28, 1 Manufacturer
(0008,0090) PN (no value available) # 0, 0 ReferringPhysiciansName
(0010,0010) PN [Mathieu Malaterre and co.] # 26, 1 PatientsName
(0010,0020) LO (no value available) # 0, 0 PatientID
(0010,0030) DA (no value available) # 0, 0 PatientsBirthDate
(0010,0040) CS (no value available) # 0, 0 PatientsSex
(0018,1020) LO [pdfeTeX-1.21a] # 14, 1 SoftwareVersions
(0020,000d) UI [1.2.826.0.1.3680043.2.1143.1868121832223417351654232480755123133] # 64, 1 StudyInstanceUID
(0020,000e) UI [1.2.826.0.1.3680043.2.1143.1330099150825746617507846107663964311] # 64, 1 SeriesInstanceUID
(0020,0010) SH (no value available) # 0, 0 StudyID
(0020,0011) IS [1] # 2, 1 SeriesNumber
(0020,0013) IS [1] # 2, 1 InstanceNumber
(0028,0301) CS [YES] # 4, 1 BurnedInAnnotation
(0040,a043) SQ (Sequence with explicit length #=0) # 0, 1 ConceptNameCodeSequence
(fffe,e0dd) na (SequenceDelimitationItem for re-encod.) # 0, 0 SequenceDelimitationItem
(0042,0010) ST [GDCM Reference Manual] # 22, 1 DocumentTitle
(0042,0011) OB 25\\50\\44\\46\\2d\\31\\2e\\34\\0a\\25\\e7\\f3\\cf\\d3\\0a\\33\\32\\30\\37\\37\\20\\30... # 13756842, 1 EncapsulatedDocument
(0042,0012) LO [application/pdf] # 16, 1 MIMETypeOfEncapsulatedDocument
\endverbatim
\verbatim
$ stat gdcm.pdf
File: `gdcm.pdf'
Size: 13756841 Blocks: 26912 IO Block: 4096 regular file
Device: fe01h/65025d Inode: 2675750 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 1002/mmalaterre) Gid: ( 1002/mmalaterre)
Access: 2009-04-28 16:05:00.000000000 +0200
Modify: 2009-04-28 15:34:37.000000000 +0200
Change: 2009-04-28 16:05:00.000000000 +0200
\endverbatim
Explanation for the different Date/Time mappings:
\li Study Date/Time, Instance Creation Date/Time are both equal to the current time gdcmpdf tool was run,
\li Acquisition Date Time is set to the Modify Time of the actual PDF file,
\li Content Date/Time are set from the actual PDF header info: CreationDate.
\section see_also SEE ALSO
<b>gdcmconv</b>(1), <b>gdcmraw</b>(1), <b>pdfinfo</b>(1)
\section copyright COPYRIGHT
Copyright (c) 2006-2011 Mathieu Malaterre
*/
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