Bookmarks are a useful way to outline the structure of a PDF file, acting like a table of contents.
Many viewers will display bookmarks in a panel alongside the document which allows users to navigate between different pages.
Our PDF SDK, JPedal, provides an API to create bookmarks programmatically.
You can create arbitrarily complex bookmark structures and add them to any PDF file using the following code:
final PdfManipulator pdf = new PdfManipulator();
pdf.loadDocument(new File("inputFile.pdf"));
final Bookmarks root = new Bookmarks();
final Bookmark b = root.addChild("1", 1)
.addChild("1.1", 2)
.addChild("1.1.1", 3);
b.addChild("1.1.1.a", 4);
b.addChild("1.1.1.b", 5);
b.addChild("1.1.1.c", 6);
Bookmark b2 = b.addChild("1.1.1.d", 7);
b2.addChild("1.1.1.d.A", 8);
b2.addChild("1.1.1.d.B", 9);
root.addChild("2", 11)
.addChild("2.1", 13);
pdf.addBookmarks(root);
pdf.apply();
pdf.writeDocument(new File("outputFile.pdf"));
pdf.closeDocument();
Warning, calling the addBookmarks() method will erase any existing bookmarks.
Download JPedal
You can get a JPedal trial jar to test adding bookmarks to PDF files.
Learn more
Learn more about the PDF Manipulator API.
We can help you better understand the PDF format as developers who have been working with the format for more than 2 decades!
The JPedal PDF library allows you to solve these problems in Java
//Convenience static method (see class for additional options)
ExtractClippedImages.writeAllClippedImagesToDir("inputFileOrDirectory", "outputDir", "outputImageFormat", new String[] {"imageHeightAsFloat", "subDirectoryForHeight"});
final PdfManipulator pdf = new PdfManipulator();
pdf.loadDocument(new File("inputFile.pdf"));
pdf.addPage(1, PaperSize.A4_LANDSCAPE);
pdf.addText(1, "Hello World", 10, 10, BaseFont.HelveticaBold, 12, 1, 0.3f, 0.2f);
pdf.addImage(1, new BufferedImage(), new float[] {0, 0, 100, 100});
pdf.rotatePage(1, 90);
pdf.apply();
pdf.writeDocument(new File("outputFile.pdf"));Viewer viewer = new Viewer();
viewer.setupViewer();
viewer.executeCommand(ViewerCommands.OPENFILE, "pdfFile.pdf");
//Convenience static method (see class for additional options)
ExtractTextAsWordList.writeAllWordlistsToDir("inputFileOrDirectory", "outputDir", -1);
PdfMerge.mergeFiles(new File("inputFile1.pdf"), new File("inputFile2.pdf"), new File("outputFile.pdf"));
PdfManipulator.splitInHalf(new File("inputFile.pdf"), new File("outputFolder"), pageToSplitAt);PrintPdfPages print = new PrintPdfPages("C:/pdfs/mypdf.pdf");
if (print.openPDFFile()) {
print.printAllPages("Printer Name");
}//Convenience static method (see class for additional options)
ExtractClippedImages.writeAllClippedImagesToDir("inputFileOrDirectory", "outputDir", "outputImageFormat", new String[] {"imageHeightAsFloat", "subDirectoryForHeight"});
//Convenience static method (see class for additional options)
ArrayList resultsForPages = FindTextInRectangle.findTextOnAllPages("/path/to/file.pdf", "textToFind");
java -jar jpedal.jar --inspect "inputFile.pdf"PdfSigner.signPdf(
"inputFile.pdf",
"outputFile.pdf",
"keystorePassword",
"keystoreFile.p12",
"signerName",
"signerLocation",
"signingReason",
ACCESS_PERMISSION.P1
);What is JPedal?
JPedal is a commercial Java PDF Library that makes it easy for Java developers to work with PDF Documents in Java.
Why use JPedal?
JPedal makes it much easier to work with PDF files from Java. Because we have been actively developing our Java PDF Toolkit for over 20 years, it works with all those problem PDF files out there.
What licenses are available?
We have 2 licenses available:
'Server' for on premises and cloud servers and 'OEM' for use in a named end user applications. Both are one time fees with options support renewal after 12 months.
How to use JPedal?
Want to learn more about JPedal and how to use it, we have plenty of tutorials and guides to help you.
