Skip to main content
Skip table of contents

How to merge PDFs and add bookmarks?

I am merging multiple PDFs together into one PDF and I need to build bookmarks for the final PDF.

For example, I have three PDFs: doc1.pdf, doc2.pdf and doc3.pdf, doc1 and doc2 belong to Group1, doc3 belongs to Group2. I need to merge them and have to build nested bookmarks for the resulting PDFs like this:



Posted on StackOverflow on May 15, 2014 by user3642526

I've made a MergeWithOutlines example that concatenates three existing PDFs in iText 7.

While doing so, I use the PdfOutline class like this:

PdfOutline helloWorld = rootOutline.addOutline("Hello World");
page += srcDoc1.getNumberOfPages();
PdfOutline link1 = helloWorld.addOutline("link1");
page += srcDoc1.getNumberOfPages();
PdfOutline link2 = rootOutline.addOutline("Link 2");

Where rootOutline is the following:

PdfOutline rootOutline = pdfDoc.getOutlines(false);

If you want an entry without a link, remove the line that add the destination. As you see, it’s much more easier to achieve your goal with iText 7 then iText 5.

Click How to merge PDFs and add bookmarks? if you want to see how to answer this question in iText 5.

JavaScript errors detected

Please note, these errors can depend on your browser setup.

If this problem persists, please contact our support.