001/* 002 * $Id: Chapter.java 3373 2008-05-12 16:21:24Z xlv $ 003 * 004 * This file is part of the iText (R) project. 005 * Copyright (c) 1998-2011 1T3XT BVBA 006 * Authors: Bruno Lowagie, Paulo Soares, et al. 007 * 008 * This program is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Affero General Public License version 3 010 * as published by the Free Software Foundation with the addition of the 011 * following permission added to Section 15 as permitted in Section 7(a): 012 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT, 013 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. 014 * 015 * This program is distributed in the hope that it will be useful, but 016 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 017 * or FITNESS FOR A PARTICULAR PURPOSE. 018 * See the GNU Affero General Public License for more details. 019 * You should have received a copy of the GNU Affero General Public License 020 * along with this program; if not, see http://www.gnu.org/licenses or write to 021 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 022 * Boston, MA, 02110-1301 USA, or download the license from the following URL: 023 * http://itextpdf.com/terms-of-use/ 024 * 025 * The interactive user interfaces in modified source and object code versions 026 * of this program must display Appropriate Legal Notices, as required under 027 * Section 5 of the GNU Affero General Public License. 028 * 029 * In accordance with Section 7(b) of the GNU Affero General Public License, 030 * a covered work must retain the producer line in every PDF that is created 031 * or manipulated using iText. 032 * 033 * You can be released from the requirements of the license by purchasing 034 * a commercial license. Buying such a license is mandatory as soon as you 035 * develop commercial activities involving the iText software without 036 * disclosing the source code of your own applications. 037 * These activities include: offering paid services to customers as an ASP, 038 * serving PDFs on the fly in a web application, shipping iText with a closed 039 * source product. 040 * 041 * For more information, please contact iText Software Corp. at this 042 * address: sales@itextpdf.com 043 */ 044package com.itextpdf.text.pdf; 045 046/** 047 * Beginning with BaseVersion 1.7, the extensions dictionary lets developers 048 * designate that a given document contains extensions to PDF. The presence 049 * of the extension dictionary in a document indicates that it may contain 050 * developer-specific PDF properties that extend a particular base version 051 * of the PDF specification. 052 * The extensions dictionary enables developers to identify their own extensions 053 * relative to a base version of PDF. Additionally, the convention identifies 054 * extension levels relative to that base version. The intent of this dictionary 055 * is to enable developers of PDF-producing applications to identify company-specific 056 * specifications (such as this one) that PDF-consuming applications use to 057 * interpret the extensions. 058 * @since 2.1.6 059 */ 060public class PdfDeveloperExtension { 061 062 /** An instance of this class for Adobe 1.7 Extension level 3. */ 063 public static final PdfDeveloperExtension ADOBE_1_7_EXTENSIONLEVEL3 = 064 new PdfDeveloperExtension(PdfName.ADBE, PdfWriter.PDF_VERSION_1_7, 3); 065 066 /** The prefix used in the Extensions dictionary added to the Catalog. */ 067 protected PdfName prefix; 068 /** The base version. */ 069 protected PdfName baseversion; 070 /** The extension level within the baseversion. */ 071 protected int extensionLevel; 072 073 /** 074 * Creates a PdfDeveloperExtension object. 075 * @param prefix the prefix referring to the developer 076 * @param baseversion the number of the base version 077 * @param extensionLevel the extension level within the baseverion. 078 */ 079 public PdfDeveloperExtension(PdfName prefix, PdfName baseversion, int extensionLevel) { 080 this.prefix = prefix; 081 this.baseversion = baseversion; 082 this.extensionLevel = extensionLevel; 083 } 084 085 /** 086 * Gets the prefix name. 087 * @return a PdfName 088 */ 089 public PdfName getPrefix() { 090 return prefix; 091 } 092 093 /** 094 * Gets the baseversion name. 095 * @return a PdfName 096 */ 097 public PdfName getBaseversion() { 098 return baseversion; 099 } 100 101 /** 102 * Gets the extension level within the baseversion. 103 * @return an integer 104 */ 105 public int getExtensionLevel() { 106 return extensionLevel; 107 } 108 109 /** 110 * Generations the developer extension dictionary corresponding 111 * with the prefix. 112 * @return a PdfDictionary 113 */ 114 public PdfDictionary getDeveloperExtensions() { 115 PdfDictionary developerextensions = new PdfDictionary(); 116 developerextensions.put(PdfName.BASEVERSION, baseversion); 117 developerextensions.put(PdfName.EXTENSIONLEVEL, new PdfNumber(extensionLevel)); 118 return developerextensions; 119 } 120}