Split PDF by Bookmarks
Break a PDF into chapters using its table of contents.
Runs on your device · no upload
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About Split PDF by Bookmarks
Split PDF by Bookmarks reads the table of contents inside your PDF and makes one file per top-level bookmark, named after the chapter. Pages before the first bookmark can be kept as their own file.
1
Add your PDF
Choose a file from your phone or computer. It never leaves your device.
2
Adjust and run
Pick your options, then tap the main button.
3
Download
Save the result. No watermark, no sign-up.
Frequently asked questions
What if my PDF has no bookmarks?
The tool tells you, and you can split by text or by page ranges instead.
Are sub-chapters included?
The split happens at top-level bookmarks, so sub-chapters stay inside their parent chapter.
Are my files uploaded anywhere?
No. This tool runs in your browser, so your file stays on your device and is never sent to a server.