iText 5 itextpdf.jar Source Code

itextpdf.jar is a component in iText 5 Java library to provide core functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided at iText GitHub site.

You can compile it to generate your JAR file, using pom.xml as the build configuration file.

The source code of itextpdf-5.5.14.jar is provided below:

✍: FYIcenter.com

com/itextpdf/text/pdf/PdfReaderInstance.java

/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2020 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: sales@itextpdf.com
 */
package com.itextpdf.text.pdf;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;

import com.itextpdf.text.error_messages.MessageLocalization;
/**
 * Instance of PdfReader in each output document.
 *
 * @author Paulo Soares
 */
class PdfReaderInstance {
    static final PdfLiteral IDENTITYMATRIX = new PdfLiteral("[1 0 0 1 0 0]");
    static final PdfNumber ONE = new PdfNumber(1);
    int myXref[];
    PdfReader reader;
    RandomAccessFileOrArray file;
    HashMap<Integer, PdfImportedPage> importedPages = new HashMap<Integer, PdfImportedPage>();
    PdfWriter writer;
    HashSet<Integer> visited = new HashSet<Integer>();
    ArrayList<Integer> nextRound = new ArrayList<Integer>();

    PdfReaderInstance(PdfReader reader, PdfWriter writer) {
        this.reader = reader;
        this.writer = writer;
        file = reader.getSafeFile();
        myXref = new int[reader.getXrefSize()];
    }

    PdfReader getReader() {
        return reader;
    }

    PdfImportedPage getImportedPage(int pageNumber) {
        if (!reader.isOpenedWithFullPermissions())
            throw new IllegalArgumentException(MessageLocalization.getComposedMessage("pdfreader.not.opened.with.owner.password"));
        if (pageNumber < 1 || pageNumber > reader.getNumberOfPages())
            throw new IllegalArgumentException(MessageLocalization.getComposedMessage("invalid.page.number.1", pageNumber));
        Integer i = Integer.valueOf(pageNumber);
        PdfImportedPage pageT = importedPages.get(i);
        if (pageT == null) {
            pageT = new PdfImportedPage(this, writer, pageNumber);
            importedPages.put(i, pageT);
        }
        return pageT;
    }

    int getNewObjectNumber(int number, int generation) {
        if (myXref[number] == 0) {
            myXref[number] = writer.getIndirectReferenceNumber();
            nextRound.add(Integer.valueOf(number));
        }
        return myXref[number];
    }

    RandomAccessFileOrArray getReaderFile() {
        return file;
    }

    PdfObject getResources(int pageNumber) {
        PdfObject obj = PdfReader.getPdfObjectRelease(reader.getPageNRelease(pageNumber).get(PdfName.RESOURCES));
        return obj;
    }

    /**
     * Gets the content stream of a page as a PdfStream object.
     * @param	pageNumber			the page of which you want the stream
     * @param	compressionLevel	the compression level you want to apply to the stream
     * @return	a PdfStream object
     * @since	2.1.3 (the method already existed without param compressionLevel)
     */
    PdfStream getFormXObject(int pageNumber, int compressionLevel) throws IOException {
        PdfDictionary page = reader.getPageNRelease(pageNumber);
        PdfObject contents = PdfReader.getPdfObjectRelease(page.get(PdfName.CONTENTS));
        PdfDictionary dic = new PdfDictionary();
        byte bout[] = null;
        if (contents != null) {
            if (contents.isStream())
                dic.putAll((PRStream)contents);
            else
                bout = reader.getPageContent(pageNumber, file);
        }
        else
            bout = new byte[0];
        dic.put(PdfName.RESOURCES, PdfReader.getPdfObjectRelease(page.get(PdfName.RESOURCES)));
        dic.put(PdfName.TYPE, PdfName.XOBJECT);
        dic.put(PdfName.SUBTYPE, PdfName.FORM);
        PdfImportedPage impPage = importedPages.get(Integer.valueOf(pageNumber));
        dic.put(PdfName.BBOX, new PdfRectangle(impPage.getBoundingBox()));
        PdfArray matrix = impPage.getMatrix();
        if (matrix == null)
            dic.put(PdfName.MATRIX, IDENTITYMATRIX);
        else
            dic.put(PdfName.MATRIX, matrix);
        dic.put(PdfName.FORMTYPE, ONE);
        PRStream stream;
        if (bout == null) {
            stream = new PRStream((PRStream)contents, dic);
        }
        else {
            stream = new PRStream(reader, bout, compressionLevel);
            stream.putAll(dic);
        }
        return stream;
    }

    void writeAllVisited() throws IOException {
        while (!nextRound.isEmpty()) {
            ArrayList<Integer> vec = nextRound;
            nextRound = new ArrayList<Integer>();
            for (int k = 0; k < vec.size(); ++k) {
                Integer i = vec.get(k);
                if (!visited.contains(i)) {
                    visited.add(i);
                    int n = i.intValue();
                    writer.addToBody(reader.getPdfObjectRelease(n), myXref[n]);
                }
            }
        }
    }

    public void writeAllPages() throws IOException {
        try {
            file.reOpen();
            for (Object element : importedPages.values()) {
                PdfImportedPage ip = (PdfImportedPage)element;
                if (ip.isToCopy()) {
                	writer.addToBody(ip.getFormXObject(writer.getCompressionLevel()), ip.getIndirectReference());
                	ip.setCopied();
                }
            }
            writeAllVisited();
        }
        finally {
            try {
// TODO: Removed - the user should be responsible for closing all PdfReaders.  But, this could cause a lot of memory leaks in code out there that hasn't been properly closing things - maybe add a finalizer to PdfReader that calls PdfReader#close() ??            	
//                reader.close();
                file.close();
            }
            catch (Exception e) {
                //Empty on purpose
            }
        }
    }
}

com/itextpdf/text/pdf/PdfReaderInstance.java

 

Or download all of them as a single archive file:

File name: itextpdf-5.5.14-fyi.zip
File size: 2163839 bytes
Release date: 2009-10-09
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