Free PDF Bookmark Editor
View existing bookmarks in a PDF and add new flat bookmarks with custom titles and page numbers. Download the updated PDF instantly.
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Why PDF Bookmarks Matter
Navigation
Bookmarks let readers jump instantly to any section of a long document without scrolling.
Accessibility
Screen readers use bookmarks to help users with disabilities navigate PDF content efficiently.
Professionalism
Well-structured bookmarks signal a high-quality document — essential for reports and eBooks.
Frequently Asked Questions
What is the PDF Bookmark Editor?
The PDF Bookmark Editor is a free online tool that view existing bookmarks in a pdf and add new flat bookmarks with custom titles and page numbers. download the updated pdf instantly.. It runs entirely in your browser with no installation or sign-up needed.
Can I see existing bookmarks?
Yes. The tool reads and displays any existing PDF outline (bookmark) structure when you upload the file.
What type of bookmarks can I add?
Flat bookmarks with a title and destination page number. Nested hierarchies are not currently supported.
Is it free?
Yes, completely free. All processing happens locally using pdf-lib.
Is my data safe with this tool?
Absolutely. The PDF Bookmark Editor processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.
Does the PDF Bookmark Editor work on mobile devices?
Yes, the PDF Bookmark Editor is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the PDF Bookmark Editor in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
Is there a file size limit?
Since the PDF Bookmark Editor processes files in your browser, the size limit depends on your device's memory. Most devices can handle PDFs up to 50-100MB without issues.
How do I use the PDF Bookmark Editor?
Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.
Which browsers are supported?
The PDF Bookmark Editor works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
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About Free PDF Bookmark Editor
Free PDF Bookmark Editor is a free, browser-based tool in our PDF Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.