Bookmark examples

JAVA

/*
    This file is part of the iText (R) project.
    Copyright (c) 1998-2023 Apryse Group NV
    Authors: Apryse Software.

    For more information, please contact iText Software at this address:
    sales@itextpdf.com
 */
package com.itextpdf.samples.sandbox.interactive;

import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfOutline;
import com.itextpdf.kernel.pdf.PdfReader;

import java.io.File;
import java.io.Writer;
import java.io.IOException;
import java.io.BufferedWriter;
import java.io.OutputStreamWriter;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.List;

public class FetchBookmarkTitles {
    public static final String DEST = "./target/txt/bookmarks.txt";

    public static final String SRC = "./src/main/resources/pdfs/bookmarks.pdf";

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

        new FetchBookmarkTitles().manipulatePdf(DEST);
    }

    public void manipulatePdf(String dest) throws Exception {
        PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC));

        // This method returns a complete outline tree of the whole document.
        // If the flag is false, the method gets cached outline tree (if it was cached
        // via calling getOutlines method before).
        PdfOutline outlines = pdfDoc.getOutlines(false);
        List<PdfOutline> bookmarks = outlines.getAllChildren();

        pdfDoc.close();

        List<String> titles = new ArrayList<>();
        for (PdfOutline bookmark : bookmarks) {
            addTitle(bookmark, titles);
        }

        // See title's names in the console
        for (String title : titles) {
            System.out.println(title);
        }

        createResultTxt(dest, titles);
    }

    /*
     * This recursive method calls itself if an examined bookmark entry has kids.
     * The method writes bookmark title to the passed list
     */
    private void addTitle(PdfOutline outline, List<String> result) {
        String bookmarkTitle = outline.getTitle();
        result.add(bookmarkTitle);

        List<PdfOutline> kids = outline.getAllChildren();
        if (kids != null) {
            for (PdfOutline kid : kids) {
                addTitle(kid, result);
            }
        }
    }

    private void createResultTxt(String dest, List<String> titles) throws IOException {
        try (Writer writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(dest)))) {
            for (int i = 0; i < titles.size(); i++) {
                writer.write("Title " + i + ": " + titles.get(i) + "\n");
            }
        }
    }
}

C#

using System;
using System.Collections.Generic;
using System.IO;
using iText.Kernel.Pdf;

namespace iText.Samples.Sandbox.Interactive
{
    public class FetchBookmarkTitles
    {
        public static readonly String DEST = "results/txt/bookmarks.txt";

        public static readonly String SRC = "../../../resources/pdfs/bookmarks.pdf";

        public static void Main(String[] args)
        {
            FileInfo file = new FileInfo(DEST);
            file.Directory.Create();

            new FetchBookmarkTitles().ManipulatePdf(DEST);
        }

        public void ManipulatePdf(String dest)
        {
            PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC));

            // This method returns a complete outline tree of the whole document.
            // If the flag is false, the method gets cached outline tree (if it was cached
            // via calling getOutlines method before).
            PdfOutline outlines = pdfDoc.GetOutlines(false);
            IList<PdfOutline> bookmarks = outlines.GetAllChildren();

            pdfDoc.Close();

            List<String> titles = new List<String>();
            foreach (PdfOutline bookmark in bookmarks)
            {
                AddTitle(bookmark, titles);
            }

            // See title's names in the console
            foreach (String title in titles)
            {
                Console.WriteLine(title);
            }

            CreateResultTxt(dest, titles);
        }

        // This recursive method calls itself if an examined bookmark entry has kids.
        // The method writes bookmark title to the passed list
        private void AddTitle(PdfOutline outline, List<String> result)
        {
            String bookmarkTitle = outline.GetTitle();
            result.Add(bookmarkTitle);

            IList<PdfOutline> kids = outline.GetAllChildren();
            if (kids != null)
            {
                foreach (PdfOutline kid in kids)
                {
                    AddTitle(kid, result);
                }
            }
        }

        private void CreateResultTxt(String dest, List<String> titles)
        {
            using (StreamWriter writer = new StreamWriter(dest))
            {
                for (int i = 0; i < titles.Count; i++)
                {
                    writer.Write("Title " + i + ": " + titles[i] + "\n");
                }
            }
        }
    }
}

JAVA

/*
    This file is part of the iText (R) project.
    Copyright (c) 1998-2023 Apryse Group NV
    Authors: Apryse Software.

    For more information, please contact iText Software at this address:
    sales@itextpdf.com
 */
package com.itextpdf.samples.sandbox.stamper;

import com.itextpdf.kernel.pdf.PdfArray;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfName;
import com.itextpdf.kernel.pdf.PdfNumber;
import com.itextpdf.kernel.pdf.PdfOutline;
import com.itextpdf.kernel.pdf.PdfReader;
import com.itextpdf.kernel.pdf.PdfWriter;

import java.io.File;
import java.util.List;

public class ChangeBookmarks {
    public static final String DEST = "./target/sandbox/stamper/change_bookmarks.pdf";
    public static final String SRC = "./src/main/resources/pdfs/bookmarks.pdf";

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

        new ChangeBookmarks().manipulatePdf(DEST);
    }

    public void changeList(List<PdfOutline> list) {
        for (PdfOutline entry : list) {
            PdfArray array = ((PdfArray) entry.getContent().get(PdfName.Dest));
            for (int i = 0; i < array.size(); i++) {
                if (PdfName.Fit.equals(array.get(i))) {
                    array.set(i, PdfName.FitV);
                    array.add(new PdfNumber(60));
                }
            }
        }
    }

    protected void manipulatePdf(String dest) throws Exception {
        PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
        PdfOutline outlines = pdfDoc.getOutlines(false);
        List<PdfOutline> children = outlines.getAllChildren().get(0).getAllChildren();
        changeList(children);
        pdfDoc.close();
    }
}

C#

using System;
using System.Collections.Generic;
using System.IO;
using iText.Kernel.Pdf;

namespace iText.Samples.Sandbox.Stamper 
{
    public class ChangeBookmarks 
    {
        public static readonly String DEST = "results/sandbox/stamper/change_bookmarks.pdf";
        public static readonly String SRC = "../../../resources/pdfs/bookmarks.pdf";

        public static void Main(String[] args) 
        {
            FileInfo file = new FileInfo(DEST);
            file.Directory.Create();
            
            new ChangeBookmarks().ManipulatePdf(DEST);
        }

        public void ChangeList(IList<PdfOutline> list) 
        {
            foreach (PdfOutline entry in list) 
            {
                PdfArray array = ((PdfArray)entry.GetContent().Get(PdfName.Dest));
                for (int i = 0; i < array.Size(); i++) 
                {
                    if (PdfName.Fit.Equals(array.Get(i)))
                    {
                        array.Set(i, PdfName.FitV);
                        array.Add(new PdfNumber(60));
                    }
                }
            }
        }

        protected void ManipulatePdf(String dest) 
        {
            PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
            PdfOutline outlines = pdfDoc.GetOutlines(false);
            IList<PdfOutline> children = outlines.GetAllChildren()[0].GetAllChildren();
            ChangeList(children);
            pdfDoc.Close();
        }
    }
}