About this tool
Add, edit and remove the table of contents (outline) of your PDF.
Edit PDF bookmarks
EditAdd, edit and remove the table of contents (outline) of your PDF.
Drop a PDF here
Process ≤ 50.0 MB
Privacy by architecture
All processing happens in your browser. Your PDF never uploads to our servers. No account required, no usage limits.
How it works
- 1Choose a PDF — never leaves your device
- 2Configure the tool to your needs
- 3Save the result to your downloads
Frequently asked questions
Is this bookmarks editor free?
Yes, completely free with no usage limits.
Can I add nested bookmarks (sub-entries)?
Yes — use the chevron buttons next to each bookmark to indent or outdent. Up to 4 nesting levels are supported, which covers the vast majority of academic/legal documents.
Does it preserve existing bookmarks?
When you load the PDF we read its current outline so you can edit. Saving replaces the whole outline with what you see.
Will my PDF be uploaded to a server?
No. Reading and writing the outline happens entirely in your browser with pdf-lib.
Does it work offline?
Yes, after the first visit.