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/*
* $Id: split_pdf.java,v 1.18 2005/04/11 08:27:24 blowagie Exp $
* $Name: $
*
* This code is free software. It may only be copied or modified
* if you include the following copyright notice:
*
* This class by Bruno Lowagie. Copyright (c) 2002 Bruno Lowagie.
*
* This code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* itext@lowagie.com
*/
package com.lowagie.tools;
import java.io.*;
import com.lowagie.text.*;
import com.lowagie.text.pdf.*;
/**
* This class demonstrates how to split a PDF file using iText.
* @author Bruno Lowagie
*/
public class split_pdf extends java.lang.Object {
/**
* This class can be used to split an existing PDF file.
* @param args the command line arguments
*/
public static void main(String args[]) {
if (args.length != 4) {
System.err.println("arguments: srcfile destfile1 destfile2 pagenumber");
}
else {
try {
int pagenumber = Integer.parseInt(args[3]);
// we create a reader for a certain document
PdfReader reader = new PdfReader(args[0]);
// we retrieve the total number of pages
int n = reader.getNumberOfPages();
System.out.println("There are " + n + " pages in the original file.");
if (pagenumber < 2 || pagenumber > n) {
throw new DocumentException("You can't split this document at page " + pagenumber + "; there is no such page.");
}
// step 1: creation of a document-object
Document document1 = new Document(reader.getPageSizeWithRotation(1));
Document document2 = new Document(reader.getPageSizeWithRotation(pagenumber));
// step 2: we create a writer that listens to the document
PdfWriter writer1 = PdfWriter.getInstance(document1, new FileOutputStream(args[1]));
PdfWriter writer2 = PdfWriter.getInstance(document2, new FileOutputStream(args[2]));
// step 3: we open the document
document1.open();
PdfContentByte cb1 = writer1.getDirectContent();
document2.open();
PdfContentByte cb2 = writer2.getDirectContent();
PdfImportedPage page;
int rotation;
int i = 0;
// step 4: we add content
while (i < pagenumber - 1) {
i++;
document1.setPageSize(reader.getPageSizeWithRotation(i));
document1.newPage();
page = writer1.getImportedPage(reader, i);
rotation = reader.getPageRotation(i);
if (rotation == 90 || rotation == 270) {
cb1.addTemplate(page, 0, -1f, 1f, 0, 0, reader.getPageSizeWithRotation(i).height());
}
else {
cb1.addTemplate(page, 1f, 0, 0, 1f, 0, 0);
}
}
while (i < n) {
i++;
document2.setPageSize(reader.getPageSizeWithRotation(i));
document2.newPage();
page = writer2.getImportedPage(reader, i);
rotation = reader.getPageRotation(i);
if (rotation == 90 || rotation == 270) {
cb2.addTemplate(page, 0, -1f, 1f, 0, 0, reader.getPageSizeWithRotation(i).height());
}
else {
cb2.addTemplate(page, 1f, 0, 0, 1f, 0, 0);
}
System.out.println("Processed page " + i);
}
// step 5: we close the document
document1.close();
document2.close();
}
catch(Exception e) {
e.printStackTrace();
}
}
}
}
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