FileopiaSplit PDF by bookmarks
Split a PDF into separate files at each bookmark, such as chapters or sections. Files are named after the bookmarks. Free and private.
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- ✓ 100% free
- ✓ No sign-up
- ✓ No limits
- 🔒 Files never leave your device
How to: Split PDF by Bookmarks
- Select a PDF that has bookmarks.
- Choose the bookmark level.
- Click Start and download the ZIP of chapters.
Well-structured PDFs – e-books, manuals, standards and annual reports – contain bookmarks (an outline) that mark where each chapter begins. Splitting by bookmarks turns one huge file into tidy chapter files automatically, without you having to look up page numbers.
Common uses
- Break an e-book or textbook into one file per chapter.
- Split a technical manual so each team receives only its section.
- Separate a combined board pack into individual agenda items.
Tips for best results
- Open the PDF's bookmark panel first to check the outline exists and is accurate.
- Choose top-level bookmarks for chapters, or deeper levels for sections.
- No bookmarks? Use Split PDF by Text with a heading like "Chapter".
Why use Fileopia for Split PDF by Bookmarks?
| Fileopia | Typical upload-based sites | |
|---|---|---|
| Files uploaded to a server | No – processed on your device | Yes |
| Sign-up required | Never | Often for bigger jobs |
| Hourly / daily task limits | None | Common on free plans |
| Watermark on output | Never | Sometimes |
| Works offline after loading | Yes, for most tools | No |
Your files never leave your device
Split PDF by Bookmarks runs entirely in your browser using JavaScript and WebAssembly. Your files are read from your disk into this tab, processed in memory and saved straight back to your downloads folder – they are never uploaded to Fileopia or any third party.
- Test it yourself: once this page has loaded, switch off Wi‑Fi or mobile data and run the tool – it keeps working.
- Check the network: open your browser’s developer tools (F12 → Network) while processing; you will see no file upload requests.
- Nothing to delete: close the tab and the data is gone – there is no server copy, no retention period and no account.
Frequently asked questions
What if my PDF has no bookmarks?
Use Split PDF by text or by page ranges instead.
What if my PDF has no bookmarks?
Use Split PDF by text (for repeated headings) or Split PDF with page ranges instead.
Is Split PDF by Bookmarks really free?
Yes. Every tool on Fileopia is 100% free with no file limits, no sign-up and no watermarks. The site is supported by unobtrusive ads.
Are my files uploaded to a server?
No. Fileopia processes your files directly in your browser using JavaScript. Your documents never leave your device, so they stay completely private.
Does it work on mobile?
Yes. Fileopia works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux.