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• PdfCopy.java

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com.itextpdf.text.pdf.PdfCopy Maven / Gradle / Ivy

/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2017 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * This program 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: [email protected]
 */
package com.itextpdf.text.pdf;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.ExceptionConverter;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.error_messages.MessageLocalization;
import com.itextpdf.text.exceptions.BadPasswordException;
import com.itextpdf.text.log.Counter;
import com.itextpdf.text.log.CounterFactory;
import com.itextpdf.text.log.Logger;
import com.itextpdf.text.log.LoggerFactory;

import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;

/**
 * Make copies of PDF documents. Documents can be edited after reading and
 * before writing them out.
 * @author Mark Thompson
 */

public class PdfCopy extends PdfWriter {

    private static final Logger LOGGER = LoggerFactory.getLogger(PdfCopy.class);

    /**
     * This class holds information about indirect references, since they are
     * renumbered by iText.
     */
    static class IndirectReferences {
        PdfIndirectReference theRef;
        boolean hasCopied;
        IndirectReferences(PdfIndirectReference ref) {
            theRef = ref;
            hasCopied = false;
        }
        void setCopied() { hasCopied = true; }
        void setNotCopied() { hasCopied = false; }
        boolean getCopied() { return hasCopied; }
        PdfIndirectReference getRef() { return theRef; }

        @Override
        public String toString() {
            String ext = "";
            if (hasCopied) ext += " Copied";
            return getRef() + ext;
        }
    }

    protected static Counter COUNTER = CounterFactory.getCounter(PdfCopy.class);
    protected Counter getCounter() {
        return COUNTER;
    }
    protected HashMap indirects;
    protected HashMap> indirectMap;
    protected HashMap parentObjects;
    protected HashSet disableIndirects;
    protected PdfReader reader;
    protected int[] namePtr = {0};
    /** Holds value of property rotateContents. */
    private boolean rotateContents = true;
    protected PdfArray fieldArray;
    protected HashSet fieldTemplates;
    private PdfStructTreeController structTreeController = null;
    private int currentStructArrayNumber = 0;
    //remember to avoid coping
    protected PRIndirectReference structTreeRootReference;
    //to remove unused objects
    protected LinkedHashMap indirectObjects;
    //PdfIndirectObjects, that generate PdfWriter.addToBody(PdfObject) method, already saved to PdfBody
    protected ArrayList savedObjects;
    //imported pages from getImportedPage(PdfReader, int, boolean)
    protected ArrayList importedPages;
    //for correct update of kids in StructTreeRootController
    protected boolean updateRootKids = false;

    static private final PdfName annotId = new PdfName("iTextAnnotId");
    static private int annotIdCnt = 0;

    protected boolean mergeFields = false;
    private boolean needAppearances = false;
    private boolean hasSignature;
    private PdfIndirectReference acroForm;
    private HashMap> tabOrder;
    private ArrayList