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Split by Bookmarks

Organize

Automatically split a bookmarked PDF into one file per top-level chapter. Keeps the original page order and titles intact.

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Drop files here or click to browse

🔒 100% Private

Files never leave your browser. No upload to any server.

⚡ Instant

Processing runs locally on your device. No queues, no waiting.

🆓 Free Forever

No signup, no watermarks, no limits. Use as many times as you like.

Frequently asked questions

What if my PDF has no bookmarks?

You'll see a notice. Use Split PDF or Split by Size instead.

Are nested bookmarks used?

Only top-level (chapter) bookmarks are used to slice the file, keeping the result clean and predictable.