Java tutorial
/* * Copyright 2004 by Paulo Soares. * * The contents of this file are subject to the Mozilla Public License Version 1.1 * (the "License"); you may not use this file except in compliance with the License. * You may obtain a copy of the License at http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the License. * * The Original Code is 'iText, a free JAVA-PDF library'. * * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie. * All Rights Reserved. * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved. * * Contributor(s): all the names of the contributors are added in the source code * where applicable. * * Alternatively, the contents of this file may be used under the terms of the * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the * provisions of LGPL are applicable instead of those above. If you wish to * allow use of your version of this file only under the terms of the LGPL * License and not to allow others to use your version of this file under * the MPL, indicate your decision by deleting the provisions above and * replace them with the notice and other provisions required by the LGPL. * If you do not delete the provisions above, a recipient may use your version * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE. * * This library is free software; you can redistribute it and/or modify it * under the terms of the MPL as stated above or under the terms of the GNU * Library General Public License as published by the Free Software Foundation; * either version 2 of the License, or any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more * details. * * If you didn't download this code from the following link, you should check if * you aren't using an obsolete version: * http://www.lowagie.com/iText/ */ package com.lowagie.text.pdf; import java.io.IOException; import java.io.OutputStream; import java.security.cert.Certificate; import java.util.List; import com.lowagie.text.DocWriter; import com.lowagie.text.DocumentException; import com.lowagie.text.pdf.interfaces.PdfEncryptionSettings; import com.lowagie.text.pdf.interfaces.PdfViewerPreferences; /** * Concatenates PDF documents including form fields. The rules for the form field * concatenation are the same as in Acrobat. All the documents are kept in memory unlike * PdfCopy. * @author Paulo Soares (psoares@consiste.pt) */ public class PdfCopyFields implements PdfViewerPreferences, PdfEncryptionSettings { private PdfCopyFieldsImp fc; /** * Creates a new instance. * @param os the output stream * @throws DocumentException on error */ public PdfCopyFields(OutputStream os) throws DocumentException { fc = new PdfCopyFieldsImp(os); } /** * Creates a new instance. * @param os the output stream * @param pdfVersion the pdf version the output will have * @throws DocumentException on error */ public PdfCopyFields(OutputStream os, char pdfVersion) throws DocumentException { fc = new PdfCopyFieldsImp(os, pdfVersion); } /** * Concatenates a PDF document. * @param reader the PDF document * @throws DocumentException on error */ public void addDocument(PdfReader reader) throws DocumentException, IOException { fc.addDocument(reader); } /** * Concatenates a PDF document selecting the pages to keep. The pages are described as a * <CODE>List</CODE> of <CODE>Integer</CODE>. The page ordering can be changed but * no page repetitions are allowed. * @param reader the PDF document * @param pagesToKeep the pages to keep * @throws DocumentException on error */ public void addDocument(PdfReader reader, List pagesToKeep) throws DocumentException, IOException { fc.addDocument(reader, pagesToKeep); } /** * Concatenates a PDF document selecting the pages to keep. The pages are described as * ranges. The page ordering can be changed but * no page repetitions are allowed. * @param reader the PDF document * @param ranges the comma separated ranges as described in {@link SequenceList} * @throws DocumentException on error */ public void addDocument(PdfReader reader, String ranges) throws DocumentException, IOException { fc.addDocument(reader, SequenceList.expand(ranges, reader.getNumberOfPages())); } /** Sets the encryption options for this document. The userPassword and the * ownerPassword can be null or have zero length. In this case the ownerPassword * is replaced by a random string. The open permissions for the document can be * AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations, * AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting. * The permissions can be combined by ORing them. * @param userPassword the user password. Can be null or empty * @param ownerPassword the owner password. Can be null or empty * @param permissions the user permissions * @param strength128Bits <code>true</code> for 128 bit key length, <code>false</code> for 40 bit key length * @throws DocumentException if the document is already open */ public void setEncryption(byte userPassword[], byte ownerPassword[], int permissions, boolean strength128Bits) throws DocumentException { fc.setEncryption(userPassword, ownerPassword, permissions, strength128Bits ? PdfWriter.STANDARD_ENCRYPTION_128 : PdfWriter.STANDARD_ENCRYPTION_40); } /** * Sets the encryption options for this document. The userPassword and the * ownerPassword can be null or have zero length. In this case the ownerPassword * is replaced by a random string. The open permissions for the document can be * AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations, * AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting. * The permissions can be combined by ORing them. * @param strength true for 128 bit key length. false for 40 bit key length * @param userPassword the user password. Can be null or empty * @param ownerPassword the owner password. Can be null or empty * @param permissions the user permissions * @throws DocumentException if the document is already open */ public void setEncryption(boolean strength, String userPassword, String ownerPassword, int permissions) throws DocumentException { setEncryption(DocWriter.getISOBytes(userPassword), DocWriter.getISOBytes(ownerPassword), permissions, strength); } /** * Closes the output document. */ public void close() { fc.close(); } /** * Opens the document. This is usually not needed as addDocument() will do it * automatically. */ public void open() { fc.openDoc(); } /** * Adds JavaScript to the global document * @param js the JavaScript */ public void addJavaScript(String js) { fc.addJavaScript(js, !PdfEncodings.isPdfDocEncoding(js)); } /** * Sets the bookmarks. The list structure is defined in * <CODE>SimpleBookmark#</CODE>. * @param outlines the bookmarks or <CODE>null</CODE> to remove any */ public void setOutlines(List outlines) { fc.setOutlines(outlines); } /** Gets the underlying PdfWriter. * @return the underlying PdfWriter */ public PdfWriter getWriter() { return fc; } /** * Gets the 1.5 compression status. * @return <code>true</code> if the 1.5 compression is on */ public boolean isFullCompression() { return fc.isFullCompression(); } /** * Sets the document's compression to the new 1.5 mode with object streams and xref * streams. It can be set at any time but once set it can't be unset. * <p> * If set before opening the document it will also set the pdf version to 1.5. */ public void setFullCompression() { fc.setFullCompression(); } /** * @see com.lowagie.text.pdf.interfaces.PdfEncryptionSettings#setEncryption(byte[], byte[], int, int) */ public void setEncryption(byte[] userPassword, byte[] ownerPassword, int permissions, int encryptionType) throws DocumentException { fc.setEncryption(userPassword, ownerPassword, permissions, encryptionType); } /** * @see com.lowagie.text.pdf.interfaces.PdfViewerPreferences#addViewerPreference(com.lowagie.text.pdf.PdfName, com.lowagie.text.pdf.PdfObject) */ public void addViewerPreference(PdfName key, PdfObject value) { fc.addViewerPreference(key, value); } /** * @see com.lowagie.text.pdf.interfaces.PdfViewerPreferences#setViewerPreferences(int) */ public void setViewerPreferences(int preferences) { fc.setViewerPreferences(preferences); } /** * @see com.lowagie.text.pdf.interfaces.PdfEncryptionSettings#setEncryption(java.security.cert.Certificate[], int[], int) */ public void setEncryption(Certificate[] certs, int[] permissions, int encryptionType) throws DocumentException { fc.setEncryption(certs, permissions, encryptionType); } }