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iText, a free Java-PDF library
/*
* $Id: Concat.java 3271 2008-04-18 20:39:42Z xlv $
* Copyright (c) 2005-2007 Bruno Lowagie, Carsten Hammer, Paulo Soares
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* This class was originally published under the MPL by Bruno Lowagie,
* Paulo Soares and Carsten Hammer.
* It was a part of iText, a Java-PDF library. You can now use it under
* the MIT License; for backward compatibility you can also use it under
* the MPL version 1.1: http://www.mozilla.org/MPL/
* A copy of the MPL license is bundled with the source code FYI.
*/
package com.lowagie.toolbox.plugins;
import java.io.File;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import javax.swing.JInternalFrame;
import com.lowagie.text.Document;
import com.lowagie.text.pdf.PdfCopy;
import com.lowagie.text.pdf.PdfImportedPage;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.SimpleBookmark;
import com.lowagie.toolbox.AbstractTool;
import com.lowagie.toolbox.arguments.AbstractArgument;
import com.lowagie.toolbox.arguments.FileArgument;
import com.lowagie.toolbox.arguments.filters.PdfFilter;
/**
* Concatenates two PDF files
* @since 2.1.1 (imported from itexttoolbox project)
*/
public class Concat extends AbstractTool {
static {
addVersion("$Id: Concat.java 3271 2008-04-18 20:39:42Z xlv $");
}
/**
* Constructs a Concat object.
*/
public Concat() {
menuoptions = MENU_EXECUTE | MENU_EXECUTE_SHOW;
arguments.add(new FileArgument(this, "srcfile1", "The first PDF file", false, new PdfFilter()));
arguments.add(new FileArgument(this, "srcfile2", "The second PDF file", false, new PdfFilter()));
arguments.add(new FileArgument(this, "destfile", "The file to which the concatenated PDF has to be written", true, new PdfFilter()));
}
/**
* @see com.lowagie.toolbox.AbstractTool#createFrame()
*/
protected void createFrame() {
internalFrame = new JInternalFrame("Concatenate 2 PDF files", true, false, true);
internalFrame.setSize(300, 80);
internalFrame.setJMenuBar(getMenubar());
System.out.println("=== Concat OPENED ===");
}
/**
* @see com.lowagie.toolbox.AbstractTool#execute()
*/
public void execute() {
try {
String[] files = new String[2];
if (getValue("srcfile1") == null) throw new InstantiationException("You need to choose a first sourcefile");
files[0] = ((File)getValue("srcfile1")).getAbsolutePath();
if (getValue("srcfile2") == null) throw new InstantiationException("You need to choose a second sourcefile");
files[1] = ((File)getValue("srcfile2")).getAbsolutePath();
if (getValue("destfile") == null) throw new InstantiationException("You need to choose a destination file");
File pdf_file = (File)getValue("destfile");
int pageOffset = 0;
List> master = new ArrayList>();
Document document = null;
PdfCopy writer = null;
for (int i = 0; i < 2; i++) {
// we create a reader for a certain document
PdfReader reader = new PdfReader(files[i]);
reader.consolidateNamedDestinations();
// we retrieve the total number of pages
int n = reader.getNumberOfPages();
List> bookmarks = SimpleBookmark.getBookmark(reader);
if (bookmarks != null) {
if (pageOffset != 0)
SimpleBookmark.shiftPageNumbers(bookmarks, pageOffset, null);
master.addAll(bookmarks);
}
pageOffset += n;
System.out.println("There are " + n + " pages in " + files[i]);
if (i == 0) {
// step 1: creation of a document-object
document = new Document(reader.getPageSizeWithRotation(1));
// step 2: we create a writer that listens to the document
writer = new PdfCopy(document, new FileOutputStream(pdf_file));
// step 3: we open the document
document.open();
}
// step 4: we add content
PdfImportedPage page;
for (int p = 0; p < n; ) {
++p;
page = writer.getImportedPage(reader, p);
writer.addPage(page);
System.out.println("Processed page " + p);
}
}
if (!master.isEmpty())
writer.setOutlines(master);
// step 5: we close the document
document.close();
}
catch(Exception e) {
e.printStackTrace();
}
}
/**
*
* @see com.lowagie.toolbox.AbstractTool#valueHasChanged(com.lowagie.toolbox.arguments.AbstractArgument)
* @param arg StringArgument
*/
public void valueHasChanged(AbstractArgument arg) {
if (internalFrame == null) {
// if the internal frame is null, the tool was called from the command line
return;
}
// represent the changes of the argument in the internal frame
}
/**
* Concatenates two PDF files.
*
* @param args String[]
*/
public static void main(String[] args) {
Concat tool = new Concat();
if (args.length < 2) {
System.err.println(tool.getUsage());
}
tool.setMainArguments(args);
tool.execute();
}
/**
*
* @see com.lowagie.toolbox.AbstractTool#getDestPathPDF()
* @throws InstantiationException
* @return File
*/
protected File getDestPathPDF() throws InstantiationException {
return (File)getValue("destfile");
}
}