Split a PDF at its chapter bookmarks
Split a PDF at its own chapter bookmarks — no manual page ranges needed.
or drop PDF files here
🔒 Your file never leaves your device
How to use Smart Split (Bookmarks)
- Choose a PDF that has bookmarks.
- Review the detected chapters.
- Download one file per chapter.
Why use Bynd PDF
- Private by design. Your files are processed inside your browser and never uploaded.
- Free, with no sign-up. No account, no watermark, no daily limits.
- Fast. No uploading or downloading a copy — the result is ready as soon as it is processed.
Frequently asked questions
What if my PDF has no bookmarks?
Add them first with the Bookmark tool, or use Split for manual ranges.
Are nested bookmarks supported?
The top-level chapters are used to decide where to split.
Are my files uploaded to a server?
No. Bynd PDF runs entirely in your browser, so your files are processed on your own device and never sent to us or anyone else.
Related tools
🔖Bookmark PDFAdd a clickable outline so readers can jump straight to a section.✂️Split PDFBreak one PDF into several — by page, or by custom ranges.📤Extract PagesPick the pages you want and save just those as a new PDF.📮Split by File SizeBreak a big PDF into smaller files that each fit under a size limit…📑Organize PagesAdd, remove, rotate, and drag pages into the order you want.📎Merge PDFCombine multiple PDFs into one, in the order you want.