Split PDF by Bookmark

Split your PDF at bookmark/chapter boundaries

Drag & drop your PDF here

Max 100MB

The field notes

Useful to know.

A little context for your next step.

About Split by Bookmark

Split a PDF at bookmark boundaries, creating separate files for each bookmarked section. Ideal for breaking long documents into chapters or sections.

01
Upload Bookmarked PDF
Select a PDF that has an existing bookmark outline.
02
Choose Split Level
Select which bookmark level to split at (top-level chapters or deeper sections).
03
Download Split Files
Each bookmarked section becomes a separate PDF. Download individually or as ZIP.

Chapter-Based Split: Automatically split at chapter or section bookmarks for logical separation.
Level Control: Choose which bookmark depth level to use as split points.
Named Output Files: Split files are named after their bookmark titles for easy identification.
ZIP Download: Download all split sections in a single convenient archive.

Do I need a PDF with existing bookmarks?

Yes, this tool splits at bookmark boundaries. If your PDF has no bookmarks, add them first with our Add Bookmarks tool.

Can I split at different bookmark levels?

Yes, choose to split at the top level (e.g., chapters) or deeper levels (e.g., subsections) depending on how you want the document divided.

How are output files named?

Each output file is named after its corresponding bookmark title, making it easy to identify the content.

What if a section spans many pages?

Each bookmark section includes all pages from that bookmark to the next bookmark at the same level.

Can I combine split sections later?

Yes, use our Merge PDF tool to recombine any split sections back into a single document.