/*
* $Id: CompressDecompressPageContent.java 45 2007-05-15 22:02:53Z chammer $
* Copyright (c) 2005-2007 Bruno Lowagie
*
* 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.
* 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.tools.plugins;
import java.io.File;
import java.io.FileOutputStream;
import javax.swing.JInternalFrame;
import javax.swing.JOptionPane;
import com.lowagie.text.Document;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.tools.AbstractTool;
import com.lowagie.tools.arguments.FileArgument;
import com.lowagie.tools.arguments.OptionArgument;
import com.lowagie.tools.arguments.StringArgument;
import com.lowagie.tools.arguments.filters.PdfFilter;
import com.lowagie.tools.swing.PdfInformationPanel;
public class CompressDecompressPageContent extends AbstractTool {
static {
addVersion("$Id: CompressDecompressPageContent.java 45 2007-05-15 22:02:53Z chammer $");
}
/**
* Constructs a Burst object.
*/
public CompressDecompressPageContent() {
FileArgument f = new FileArgument(this, "srcfile", "The file you want to compress/decompress", false, new PdfFilter());
f.setLabel(new PdfInformationPanel());
arguments.add(f);
arguments.add(new FileArgument(this, "destfile", "The file to which the compressed/decompressed PDF has to be written", true, new PdfFilter()));
OptionArgument oa = new OptionArgument(this, "compress", "compress");
oa.addOption("Compress page content", "true");
oa.addOption("Decompress page content", "false");
arguments.add(oa);
}
/**
* @see com.lowagie.tools.AbstractTool#createFrame()
*/
protected void createFrame() {
internalFrame = new JInternalFrame("Compress/Decompress", true, false, true);
internalFrame.setSize(300, 80);
internalFrame.setJMenuBar(getMenubar());
System.out.println("=== Compress/Decompress OPENED ===");
}
/**
*
* @see com.lowagie.tools.AbstractTool#valueHasChanged(com.lowagie.tools.arguments.StringArgument)
* @param arg StringArgument
*/
public void valueHasChanged(StringArgument arg) {
if (internalFrame == null) {
// if the internal frame is null, the tool was called from the commandline
return;
}
// represent the changes of the argument in the internal frame
}
/**
* Compresses/decompresses the page content streams in a PDF file.
*
* @param args String[]
*/
public static void main(String[] args) {
CompressDecompressPageContent tool = new CompressDecompressPageContent();
if (args.length < 2) {
System.err.println(tool.getUsage());
}
tool.setMainArguments(args);
tool.execute();
}
/**
*
* @see com.lowagie.tools.AbstractTool#getDestPathPDF()
* @throws InstantiationException
* @return File
*/
protected File getDestPathPDF() throws InstantiationException {
return (File)getValue("destfile");
}
/**
* @see com.lowagie.tools.AbstractTool#execute()
*/
public void execute() {
try {
if (getValue("srcfile") == null) throw new InstantiationException("You need to choose a sourcefile");
if (getValue("destfile") == null) throw new InstantiationException("You need to choose a destination file");
boolean compress = "true".equals(getValue("compress"));
PdfReader reader = new PdfReader(((File)getValue("srcfile")).getAbsolutePath());
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(getDestPathPDF()));
synchronized(arguments) {
Document.compress = compress;
int total = reader.getNumberOfPages() + 1;
for (int i = 1; i < total; i++) {
reader.setPageContent(i, reader.getPageContent(i));
}
stamper.close();
Document.compress = true;
}
}
catch(Exception e) {
JOptionPane.showMessageDialog(internalFrame,
e.getMessage(),
e.getClass().getName(),
JOptionPane.ERROR_MESSAGE);
System.err.println(e.getMessage());
}
}
}