No bookmarks — is the file broken?

Almost certainly not. Most generators skip outlines unless asked. The content is unaffected.

Why do some entries lack pages?

Their destinations use forms this reader cannot resolve (named actions, embedded gotos). The titles still display.

Can I edit or add bookmarks?

Not with this viewer — it reads only. Dedicated editors handle bookmark surgery.

PDF Outline Viewer

Display a PDF’s bookmark tree with nesting and target pages.

View PDF bookmarks and table of contents instantly in your browser. Free outline viewer with nested headings and page numbers.

About PDF Bookmarks

Display a PDF’s bookmark tree with nesting and target pages.

Upload a PDF to walk its outline dictionary recursively — nested exactly as the author structured it, with destination pages resolved where possible. Unresolvable destinations show without page numbers rather than failing.

Missing outlines are normal for scans and minimal exports; only authored TOCs appear. Files stay in your browser.

Where it is used

Navigating long ebooks and manuals, auditing document structure, and verifying exports kept their TOC.

How to use the PDF Bookmarks

Select PDF — select a file (application/pdf,.pdf) — PDF documents up to 50 MB. Files never leave your browser..
Calculate — press the Calculate button to see the result instantly above.

Formula

getOutline() recursion with destination→page resolution, capped at 500 entries.

Examples

Example

Result: Select a PDF → nested bookmark list with page numbers

Frequently Asked Questions

No bookmarks — is the file broken?: Almost certainly not. Most generators skip outlines unless asked. The content is unaffected.
Why do some entries lack pages?: Their destinations use forms this reader cannot resolve (named actions, embedded gotos). The titles still display.
Can I edit or add bookmarks?: Not with this viewer — it reads only. Dedicated editors handle bookmark surgery.

Calculator Inputs