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PDF Outline Extractor

Extract the nested document outline or bookmarks as indented text.

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Read PDF bookmarks and outline.

ResultChoose files to begin.

Files are never uploaded, stored or sent to a third party. Temporary download URLs are released when the page closes.

Method, example & boundaries

PDF Outline Extractor: from input to a reviewable result

Read a PDF document outline or bookmark tree and render it as indented text while preserving its nested order. This is useful for checking navigation in manuals, reports, and exported ebooks without uploading the PDF or pretending that visually large headings are bookmarks.

Worked example: inspect a nested handbook outline

Example input
A handbook PDF with bookmarks “1 Introduction”, “2 Setup”, child “2.1 Windows”, and child “2.2 macOS”.
Example output
Four lines in source order, with the two setup children indented beneath “2 Setup”.

How to interpret it

Indentation comes from the PDF outline hierarchy itself, making a missing or misplaced bookmark visible without reconstructing headings from page text.

Traverse the PDF outline tree

The local PDF parser requests the document outline, walks every bookmark depth-first, and emits the stored title with bounded indentation. Output is capped at five hundred entries and ten visible indentation levels to keep a malformed or extremely deep tree reviewable.

Outline inspection boundaries

  • A PDF can contain visible headings but no bookmark outline; those headings will not be inferred.
  • The text export shows titles and hierarchy, not a guaranteed destination page for every bookmark.
  • Encrypted, damaged, or unusually structured PDFs may fail before the outline can be read.

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