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/*
* $Id: ReversePages.java 3271 2008-04-18 20:39:42Z xlv $
* Copyright (c) 2005-2007 Bruno Lowagie, Carsten Hammer
*
* 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
* 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 javax.swing.JInternalFrame;
import com.lowagie.text.Document;
import com.lowagie.text.pdf.PRAcroForm;
import com.lowagie.text.pdf.PdfCopy;
import com.lowagie.text.pdf.PdfImportedPage;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.toolbox.AbstractTool;
import com.lowagie.toolbox.arguments.AbstractArgument;
import com.lowagie.toolbox.arguments.FileArgument;
import com.lowagie.toolbox.arguments.filters.PdfFilter;
/**
* This tool lets you take pages from an existing PDF and copy them in reverse order into a new PDF.
* @since 2.1.1 (imported from itexttoolbox project)
*/
public class ReversePages
extends AbstractTool {
static {
addVersion(
"$Id: ReversePages.java 3271 2008-04-18 20:39:42Z xlv $");
}
FileArgument destfile = null;
/**
* Constructs a ReversePages object.
*/
public ReversePages() {
menuoptions = MENU_EXECUTE | MENU_EXECUTE_SHOW;
FileArgument inputfile = null;
inputfile = new FileArgument(this, "srcfile",
"The file you want to reorder", false,
new PdfFilter());
arguments.add(inputfile);
destfile = new FileArgument(this, "destfile",
"The file to which the reordered version of the original PDF has to be written", true,
new PdfFilter());
arguments.add(destfile);
inputfile.addPropertyChangeListener(destfile);
}
/**
* @see com.lowagie.toolbox.AbstractTool#createFrame()
*/
protected void createFrame() {
internalFrame = new JInternalFrame("ReversePages", true, false, true);
internalFrame.setSize(300, 80);
internalFrame.setJMenuBar(getMenubar());
System.out.println("=== ReversePages OPENED ===");
}
/**
* @see com.lowagie.toolbox.AbstractTool#execute()
*/
public void execute() {
try {
if (getValue("srcfile") == null) {
throw new InstantiationException("You need to choose a sourcefile");
}
File src = (File) getValue("srcfile");
if (getValue("destfile") == null) {
throw new InstantiationException(
"You need to choose a destination file");
}
File dest = (File) getValue("destfile");
// we create a reader for a certain document
PdfReader reader = new PdfReader(src.getAbsolutePath());
System.out.println("The original file had " + reader.getNumberOfPages() +
" pages.");
int pages = reader.getNumberOfPages();
ArrayList li = new ArrayList<>();
for (int i = pages; i > 0; i--) {
li.add(i);
}
reader.selectPages(li);
System.err.println("The new file has " + pages + " pages.");
Document document = new Document(reader.getPageSizeWithRotation(1));
PdfCopy copy = new PdfCopy(document,
new FileOutputStream(dest.getAbsolutePath()));
document.open();
PdfImportedPage page;
for (int i = 0; i < pages; ) {
++i;
System.out.println("Processed page " + i);
page = copy.getImportedPage(reader, i);
copy.addPage(page);
}
PRAcroForm form = reader.getAcroForm();
if (form != null) {
copy.copyAcroForm(reader);
}
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;
}
if (destfile.getValue() == null && arg.getName().equalsIgnoreCase("srcfile")) {
String filename = arg.getValue().toString();
String filenameout = filename.substring(0, filename.indexOf(".",
filename.length() - 4)) + "_out.pdf";
destfile.setValue(filenameout);
}
}
/**
* Take pages from an existing PDF and copy them in reverse order into a new PDF.
*
* @param args String[]
*/
public static void main(String[] args) {
ReversePages tool = new ReversePages();
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");
}
}
