Skip to content
PDF100

Split by bookmarks

Split a PDF into one file per top-level bookmark (chapter).

Drop your file here

.pdf

How to use Split by bookmarks

  1. 1

    Choose a file (.pdf) or drop it into the box.

  2. 2

    No settings needed: the defaults just work.

  3. 3

    Click “Split by bookmarks” and download the result: several pdfs (zip).

Your documents are processed entirely inside your browser. They are never uploaded to PDF100 or any third party, so Split by bookmarks is suitable for confidential files. Read our privacy policy.

Split by bookmarks questions

Is Split by bookmarks free?

Yes. Split by bookmarks on PDF100 is free with no account, no watermark and no daily limit. The site is supported by advertising.

Are my files uploaded when I use Split by bookmarks?

No. Split by bookmarks runs entirely inside your browser tab. The file is read and processed on your device and the result is saved straight to your downloads, so no copy reaches our servers.

Which files does Split by bookmarks accept?

Split by bookmarks accepts .pdf. The result is: several pdfs (zip).

Is there a file size limit?

There is no fixed limit set by PDF100. Because processing happens on your device, the practical limit is your browser memory. Very large files work best on a desktop computer.

Does Split by bookmarks work on my phone?

Yes. Split by bookmarks works in current versions of Chrome, Safari, Edge and Firefox on desktop and mobile. Large documents are faster on a computer.

Related guides

More organize pages tools