Merging documents with bookmarks

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31st May 2016
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InsertAndAdaptOutlines.java
/*

    This file is part of the iText (R) project.
    Copyright (c) 1998-2016 iText Group NV

*/

/**
 * Example written in answer to:
 * http://stackoverflow.com/questions/34381849
 */
package com.itextpdf.samples.sandbox.merge;

import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfOutline;
import com.itextpdf.kernel.pdf.PdfReader;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.navigation.PdfExplicitDestination;
import com.itextpdf.samples.GenericTest;
import com.itextpdf.test.annotations.type.SampleTest;

import java.io.File;
import java.io.IOException;

import org.junit.experimental.categories.Category;

@Category(SampleTest.class)
public class InsertAndAdaptOutlines extends GenericTest {
    public static final String DEST =
            "./target/test/resources/sandbox/merge/insert_and_adapt_outlines.pdf";
    public static final String INSERT =
            "./src/test/resources/pdfs/hello.pdf";
    public static final String SRC =
            "./src/test/resources/pdfs/bookmarks.pdf";

    public static void main(String[] args) throws IOException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new InsertAndAdaptOutlines().manipulatePdf(DEST);
    }

    public void manipulatePdf(String dest) throws IOException {
        PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
        PdfDocument insertDoc = new PdfDocument(new PdfReader(INSERT));
        insertDoc.copyPagesTo(1, 1, pdfDoc, 4);
        insertDoc.close();

        PdfOutline outlines = pdfDoc.getOutlines(false);
        PdfOutline outline = outlines.getAllChildren().get(0).addOutline("Hello", 3);
        outline.addDestination(PdfExplicitDestination.createFit(4));
        pdfDoc.close();
    }
}
MergeWithOutlines.java
/*

    This file is part of the iText (R) project.
    Copyright (c) 1998-2016 iText Group NV

*/

/**
 * Example written by Bruno Lowagie in answer to a question on StackOverflow
 * 

* When concatenating documents, we add a named destination every time * a new document is started. After we've finished merging, we add an extra * page with the table of contents and links to the named destinations. */ package com.itextpdf.samples.sandbox.merge; import com.itextpdf.kernel.pdf.PdfDocument; import com.itextpdf.kernel.pdf.PdfOutline; import com.itextpdf.kernel.pdf.PdfReader; import com.itextpdf.kernel.pdf.PdfWriter; import com.itextpdf.kernel.pdf.navigation.PdfExplicitDestination; import com.itextpdf.kernel.utils.PdfMerger; import com.itextpdf.samples.GenericTest; import com.itextpdf.test.annotations.type.SampleTest; import org.junit.experimental.categories.Category; import java.io.File; import java.io.IOException; @Category(SampleTest.class) public class MergeWithOutlines extends GenericTest { public static final String DEST = "./target/test/resources/sandbox/merge/merge_with_outlines.pdf"; public static final String SRC1 = "./src/test/resources/pdfs/hello.pdf"; public static final String SRC2 = "./src/test/resources/pdfs/links1.pdf"; public static final String SRC3 = "./src/test/resources/pdfs/links2.pdf"; public static void main(String[] args) throws IOException { File file = new File(DEST); file.getParentFile().mkdirs(); new MergeWithOutlines().manipulatePdf(DEST); } public void manipulatePdf(String destFolder) throws IOException { PdfDocument pdfDoc = new PdfDocument(new PdfWriter(DEST)); PdfMerger merger = new PdfMerger(pdfDoc); PdfOutline rootOutline = pdfDoc.getOutlines(false); int page = 1; PdfDocument srcDoc1 = new PdfDocument(new PdfReader(SRC1)); merger.merge(srcDoc1, 1, srcDoc1.getNumberOfPages()); PdfDocument srcDoc2 = new PdfDocument(new PdfReader(SRC2)); PdfDocument srcDoc3 = new PdfDocument(new PdfReader(SRC3)); merger.setCloseSourceDocuments(true) .merge(srcDoc2, 1, srcDoc2.getNumberOfPages()) .merge(srcDoc3, 1, srcDoc3.getNumberOfPages()); PdfOutline helloWorld = rootOutline.addOutline("Hello World"); helloWorld.addDestination(PdfExplicitDestination.createFit(pdfDoc.getPage(page))); page += srcDoc1.getNumberOfPages(); PdfOutline link1 = helloWorld.addOutline("link1"); link1.addDestination(PdfExplicitDestination.createFit(pdfDoc.getPage(page))); page += srcDoc1.getNumberOfPages(); PdfOutline link2 = rootOutline.addOutline("Link 2"); link2.addDestination(PdfExplicitDestination.createFit(pdfDoc.getPage(page))); srcDoc1.close(); pdfDoc.close(); } }

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