001: /*
002: * $Id: encrypt_pdf.java 2569 2007-02-06 13:10:39Z blowagie $
003: * $Name$
004: *
005: * Copyright 2002 by Paulo Soares
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: package com.lowagie.tools;
051:
052: import java.io.FileOutputStream;
053: import java.util.HashMap;
054:
055: import com.lowagie.text.pdf.PdfEncryptor;
056: import com.lowagie.text.pdf.PdfReader;
057: import com.lowagie.text.pdf.PdfWriter;
058:
059: /**
060: * Encrypts a PDF document. It needs iText (http://www.lowagie.com/iText).
061: * @author Paulo Soares (psoares@consiste.pt)
062: */
063: public class encrypt_pdf {
064:
065: private final static int INPUT_FILE = 0;
066: private final static int OUTPUT_FILE = 1;
067: private final static int USER_PASSWORD = 2;
068: private final static int OWNER_PASSWORD = 3;
069: private final static int PERMISSIONS = 4;
070: private final static int STRENGTH = 5;
071: private final static int MOREINFO = 6;
072: private final static int permit[] = { PdfWriter.AllowPrinting,
073: PdfWriter.AllowModifyContents, PdfWriter.AllowCopy,
074: PdfWriter.AllowModifyAnnotations, PdfWriter.AllowFillIn,
075: PdfWriter.AllowScreenReaders, PdfWriter.AllowAssembly,
076: PdfWriter.AllowDegradedPrinting };
077:
078: private static void usage() {
079: System.out
080: .println("usage: input_file output_file user_password owner_password permissions 128|40 [new info string pairs]");
081: System.out
082: .println("permissions is 8 digit long 0 or 1. Each digit has a particular security function:");
083: System.out.println();
084: System.out.println("AllowPrinting");
085: System.out.println("AllowModifyContents");
086: System.out.println("AllowCopy");
087: System.out.println("AllowModifyAnnotations");
088: System.out.println("AllowFillIn (128 bit only)");
089: System.out.println("AllowScreenReaders (128 bit only)");
090: System.out.println("AllowAssembly (128 bit only)");
091: System.out.println("AllowDegradedPrinting (128 bit only)");
092: System.out
093: .println("Example permissions to copy and print would be: 10100000");
094: }
095:
096: /**
097: * Encrypts a PDF document.
098: *
099: * @param args input_file output_file user_password owner_password permissions 128|40 [new info string pairs]
100: */
101: public static void main(String args[]) {
102: System.out.println("PDF document encryptor");
103: if (args.length <= STRENGTH || args[PERMISSIONS].length() != 8) {
104: usage();
105: return;
106: }
107: try {
108: int permissions = 0;
109: String p = args[PERMISSIONS];
110: for (int k = 0; k < p.length(); ++k) {
111: permissions |= (p.charAt(k) == '0' ? 0 : permit[k]);
112: }
113: System.out.println("Reading " + args[INPUT_FILE]);
114: PdfReader reader = new PdfReader(args[INPUT_FILE]);
115: System.out.println("Writing " + args[OUTPUT_FILE]);
116: HashMap moreInfo = new HashMap();
117: for (int k = MOREINFO; k < args.length - 1; k += 2)
118: moreInfo.put(args[k], args[k + 1]);
119: PdfEncryptor.encrypt(reader, new FileOutputStream(
120: args[OUTPUT_FILE]), args[USER_PASSWORD].getBytes(),
121: args[OWNER_PASSWORD].getBytes(), permissions,
122: args[STRENGTH].equals("128"), moreInfo);
123: System.out.println("Done.");
124: } catch (Exception e) {
125: e.printStackTrace();
126: }
127: }
128: }
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