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Split PDF by Bookmarks

Split a PDF at its supported top-level bookmarks. The result is a ZIP with one PDF for each chapter; PDFs without supported bookmarks cannot be split this way.

Two real chapter bookmarks start at pages 1 and 4. Splitting by bookmarks should produce two three-page PDFs.

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Local limits: Max files: 1 / Max single file: 10 MB / Max pages: 200

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A practical guide

Split PDF by Bookmarks: a worked example

  1. Choose a PDF with supported top-level bookmarks that point to pages.
  2. The example has two chapter bookmarks; split at those chapter starts.
  3. Download the ZIP and check that each chapter PDF contains its expected page sequence.

Try this example

Use the six-page sample PDF with top-level chapter bookmarks at pages 1 and 4. Split in bookmark mode, then inspect the ZIP: the chapter PDFs should cover pages 1-3 and 4-6. This follows PDF bookmarks, not headings detected in page text.

Before

  • Chapter 1
  • Chapter 2

After

  • Chapter 1.pdf
  • Chapter 2.pdf
Input and expected output for this operation. Illustrative example.
Continue with Merge PDF
What you get

Split a PDF at its supported top-level bookmarks. The result is a ZIP with one PDF for each chapter; PDFs without supported bookmarks cannot be split this way.

Limits and important details

Local limits: Max files: 1 / Max single file: 10 MB / Max pages: 200

Up to 40 chapters; pages before the first bookmark count as one. Only bookmarks that point to pages in increasing order are used; other PDFs need page ranges. Links, comments and form fields are kept. The result is a ZIP of chapter PDFs.

Example

Use the six-page sample PDF with top-level chapter bookmarks at pages 1 and 4. Split in bookmark mode, then inspect the ZIP: the chapter PDFs should cover pages 1-3 and 4-6. This follows PDF bookmarks, not headings detected in page text.