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Toolzum

PDF Table of Contents

Generate clickable tables of contents for PDFs from headings — navigate 300-page ebooks instantly. Add what the author forgot — local pdf-lib work, unlimited saves.

Runs on pdf-lib

100% Local Browser Native

How to Use the PDF Table of Contents

1. Upload the PDF

Ebooks and reports missing navigation.

2. Generate and edit outline

Auto-detect headings, prune false entries.

3. Download with TOC

Save the navigable file (downloads are unlimited).

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Frequently Asked Questions

How are entries detected?

From font-size headings and existing structure: a 300-page ebook gains a nested outline in one pass. Review generated entries — decorative large text sometimes sneaks in as false headings.

Clickable in all readers?

Standard PDF outlines work in Acrobat, Preview, Chrome, and mobile readers alike. Test two readers before distributing widely.

Can I edit entries?

Yes — rename, reorder, and nest entries before baking in. Fix auto-detected junk titles in the same pass.

Does outlining upload my ebook?

No — outlining runs locally in your browser on pdf-lib. Only the final save touches the network — downloads are unlimited.

Last updated October 2026