iText kernel.jar Source Code

kernel.jar is a component in iText Java library to provide low-level functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided together with the JAR file in the binary packge like iText7-Core-7.1.4.zip. You can download it at iText 7 Core Download site.

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

The source code of kernel-7.1.4.jar is provided below:

✍: FYIcenter.com

com/itextpdf/kernel/utils/PdfMerger.java

/*

    This file is part of the iText (R) project.
    Copyright (c) 1998-2018 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.kernel.utils;

import com.itextpdf.kernel.pdf.PdfDocument;

import java.util.ArrayList;
import java.util.List;


public class PdfMerger {

    private PdfDocument pdfDocument;
    private boolean closeSrcDocuments;
    private boolean mergeTags;
    private boolean mergeOutlines;

    /**
     * This class is used to merge a number of existing documents into one. By default, if source document
     * contains tags and outlines, they will be also copied to the destination document.
     * @param pdfDocument the document into which source documents will be merged.
     */
    public PdfMerger(PdfDocument pdfDocument) {
        this(pdfDocument, true, true);
    }

    /**
     * This class is used to merge a number of existing documents into one.
     * @param pdfDocument the document into which source documents will be merged.
     * @param mergeTags if true, then tags from the source document are copied even if destination document is not set as
     *                  tagged. Note, that if false, tag structure is still could be copied if the destination document
     *                  is explicitly marked as tagged with {@link PdfDocument#setTagged()}.
     * @param mergeOutlines if true, then outlines from the source document are copied even if in destination document
     *                      outlines are not initialized. Note, that if false, outlines are still could be copied if the
     *                      destination document outlines were explicitly initialized with {@link PdfDocument#initializeOutlines()}.
     */
    public PdfMerger(PdfDocument pdfDocument, boolean mergeTags, boolean mergeOutlines) {
        this.pdfDocument = pdfDocument;
        this.mergeTags = mergeTags;
        this.mergeOutlines = mergeOutlines;
    }

    /**
     * If set to <i>true</i> then passed to the <i>{@code PdfMerger#merge}</i> method source documents will be closed
     * immediately after merging specified pages into current document. If <i>false</i> - PdfDocuments are left open.
     * Default value - <i>false</i>.
     * @param closeSourceDocuments should be true to close pdf documents in merge method.
     * @return this {@code PdfMerger} instance.
     */
    public PdfMerger setCloseSourceDocuments(boolean closeSourceDocuments) {
        this.closeSrcDocuments = closeSourceDocuments;
        return this;
    }

    /**
     * This method merges pages from the source document to the current one.
     * <br><br>
     * If <i>closeSourceDocuments</i> flag is set to <i>true</i> (see {@link #setCloseSourceDocuments(boolean)}),
     * passed {@code PdfDocument} will be closed after pages are merged.
     * @param from - document, from which pages will be copied.
     * @param fromPage - start page in the range of pages to be copied.
     * @param toPage - end (inclusive) page in the range to be copied
     * @return this {@code PdfMerger} instance.
     */
    public PdfMerger merge(PdfDocument from, int fromPage, int toPage) {
        List<Integer> pages = new ArrayList<>(toPage - fromPage);
        for (int pageNum = fromPage; pageNum <= toPage; pageNum++){
            pages.add(pageNum);
        }
        return merge(from, pages);
    }

    /**
     * This method merges pages from the source document to the current one.
     * <br><br>
     * If <i>closeSourceDocuments</i> flag is set to <i>true</i> (see {@link #setCloseSourceDocuments(boolean)}),
     * passed {@code PdfDocument} will be closed after pages are merged.
     * @param from - document, from which pages will be copied.
     * @param pages - List of numbers of pages which will be copied.
     * @return this {@code PdfMerger} instance.
     */
    public PdfMerger merge(PdfDocument from, List<Integer> pages) {
        if (mergeTags && from.isTagged()) {
            pdfDocument.setTagged();
        }
        if (mergeOutlines && from.hasOutlines()) {
            pdfDocument.initializeOutlines();
        }

        from.copyPagesTo(pages, pdfDocument);
        if (closeSrcDocuments) {
            from.close();
        }
        return this;
    }

    /**
     * Closes the current document. It is a complete equivalent of calling {@code PdfDocument#close} on the PdfDocument
     * passed to the constructor of this PdfMerger instance. This means that it is enough to call <i>close</i> either on
     * passed PdfDocument or on this PdfMerger instance, but there is no need to call them both.
     */
    public void close() {
        pdfDocument.close();
    }
}

com/itextpdf/kernel/utils/PdfMerger.java

 

⇒ iText io.jar Source Code

⇐ Download and Install iText7-Core-7.1.4.zip

⇑ Download and Install iText Java Library

⇑⇑ iText for PDF Generation

2010-02-18, 48124👍, 0💬