Add bookmarks to PDF (outline / TOC) so readers jump to chapters. Enter titles and page numbers, download, and open the outline panel in Preview or Adobe.
PDF
How it works
Bookmark editing is local.
1
List entries
Add bookmark titles with 1-based page numbers.
2
Write outline
pdf-lib writes a top-level Outlines dictionary into the PDF.
When you’d use this
Create a clickable PDF outline / table of contents — You inherited a messy packet from a scanner or email thread and need a clean file before a form upload. A colleague sent a multi-part PDF and you only need a subset for a meeting pack.
FAQ
About add bookmarks to pdf
Nested bookmarks?
This free tool creates a flat outline. Nested trees may come later.
What is Add Bookmarks to PDF for?
Create a clickable PDF outline / table of contents. It runs in your browser on SortMyFile so you can finish the job without an upload converter.
Does Add Bookmarks to PDF upload files to SortMyFile?
No. Add Bookmarks to PDF processes locally in the tab. We do not operate an upload API for this tool.
Related tools
More private utilities that pair well with this page.