001: /*
002: * $Id: split_pdf.java 2752 2007-05-15 14:58:33Z blowagie $
003: * $Name$
004: *
005: * Copyright 2002 by Bruno Lowagie
006: *
007: * The contents of this file are subject to the Mozilla Public License Version 1.1
008: * (the "License"); you may not use this file except in compliance with the License.
009: * You may obtain a copy of the License at http://www.mozilla.org/MPL/
010: *
011: * Software distributed under the License is distributed on an "AS IS" basis,
012: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
013: * for the specific language governing rights and limitations under the License.
014: *
015: * The Original Code is 'iText, a free JAVA-PDF library'.
016: *
017: * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
018: * the Initial Developer are Copyright (C) 1999-2006 by Bruno Lowagie.
019: * All Rights Reserved.
020: * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
021: * are Copyright (C) 2000-2006 by Paulo Soares. All Rights Reserved.
022: *
023: * Contributor(s): all the names of the contributors are added in the source code
024: * where applicable.
025: *
026: * Alternatively, the contents of this file may be used under the terms of the
027: * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
028: * provisions of LGPL are applicable instead of those above. If you wish to
029: * allow use of your version of this file only under the terms of the LGPL
030: * License and not to allow others to use your version of this file under
031: * the MPL, indicate your decision by deleting the provisions above and
032: * replace them with the notice and other provisions required by the LGPL.
033: * If you do not delete the provisions above, a recipient may use your version
034: * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
035: *
036: * This library is free software; you can redistribute it and/or modify it
037: * under the terms of the MPL as stated above or under the terms of the GNU
038: * Library General Public License as published by the Free Software Foundation;
039: * either version 2 of the License, or any later version.
040: *
041: * This library is distributed in the hope that it will be useful, but WITHOUT
042: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
043: * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
044: * details.
045: *
046: * If you didn't download this code from the following link, you should check if
047: * you aren't using an obsolete version:
048: * http://www.lowagie.com/iText/
049: */
050:
051: package com.lowagie.tools;
052:
053: import java.io.FileOutputStream;
054:
055: import com.lowagie.text.Document;
056: import com.lowagie.text.DocumentException;
057: import com.lowagie.text.pdf.PdfContentByte;
058: import com.lowagie.text.pdf.PdfImportedPage;
059: import com.lowagie.text.pdf.PdfReader;
060: import com.lowagie.text.pdf.PdfWriter;
061:
062: /**
063: * This class demonstrates how to split a PDF file using iText.
064: * @author Bruno Lowagie
065: */
066: public class split_pdf extends java.lang.Object {
067:
068: /**
069: * This class can be used to split an existing PDF file.
070: * @param args the command line arguments
071: */
072: public static void main(String args[]) {
073: if (args.length != 4) {
074: System.err
075: .println("arguments: srcfile destfile1 destfile2 pagenumber");
076: } else {
077: try {
078: int pagenumber = Integer.parseInt(args[3]);
079:
080: // we create a reader for a certain document
081: PdfReader reader = new PdfReader(args[0]);
082: // we retrieve the total number of pages
083: int n = reader.getNumberOfPages();
084: System.out.println("There are " + n
085: + " pages in the original file.");
086:
087: if (pagenumber < 2 || pagenumber > n) {
088: throw new DocumentException(
089: "You can't split this document at page "
090: + pagenumber
091: + "; there is no such page.");
092: }
093:
094: // step 1: creation of a document-object
095: Document document1 = new Document(reader
096: .getPageSizeWithRotation(1));
097: Document document2 = new Document(reader
098: .getPageSizeWithRotation(pagenumber));
099: // step 2: we create a writer that listens to the document
100: PdfWriter writer1 = PdfWriter.getInstance(document1,
101: new FileOutputStream(args[1]));
102: PdfWriter writer2 = PdfWriter.getInstance(document2,
103: new FileOutputStream(args[2]));
104: // step 3: we open the document
105: document1.open();
106: PdfContentByte cb1 = writer1.getDirectContent();
107: document2.open();
108: PdfContentByte cb2 = writer2.getDirectContent();
109: PdfImportedPage page;
110: int rotation;
111: int i = 0;
112: // step 4: we add content
113: while (i < pagenumber - 1) {
114: i++;
115: document1.setPageSize(reader
116: .getPageSizeWithRotation(i));
117: document1.newPage();
118: page = writer1.getImportedPage(reader, i);
119: rotation = reader.getPageRotation(i);
120: if (rotation == 90 || rotation == 270) {
121: cb1
122: .addTemplate(page, 0, -1f, 1f, 0, 0,
123: reader.getPageSizeWithRotation(
124: i).getHeight());
125: } else {
126: cb1.addTemplate(page, 1f, 0, 0, 1f, 0, 0);
127: }
128: }
129: while (i < n) {
130: i++;
131: document2.setPageSize(reader
132: .getPageSizeWithRotation(i));
133: document2.newPage();
134: page = writer2.getImportedPage(reader, i);
135: rotation = reader.getPageRotation(i);
136: if (rotation == 90 || rotation == 270) {
137: cb2
138: .addTemplate(page, 0, -1f, 1f, 0, 0,
139: reader.getPageSizeWithRotation(
140: i).getHeight());
141: } else {
142: cb2.addTemplate(page, 1f, 0, 0, 1f, 0, 0);
143: }
144: System.out.println("Processed page " + i);
145: }
146: // step 5: we close the document
147: document1.close();
148: document2.close();
149: } catch (Exception e) {
150: e.printStackTrace();
151: }
152: }
153: }
154: }
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