Generate Table of Contents
Auto-generate bookmarks from headings detected in a PDF — based on font size. Larger text = chapter, smaller = section.
1. Upload your file
How does the Generate Table of Contents work?
Long PDFs become much more usable when readers can jump to a chapter from the bookmark sidebar. This tool detects headings in your PDF (using font size as the cue — bigger text = higher-level heading) and adds them as bookmarks automatically. Choose how many levels to include: top-level only (only the biggest font), or up to three levels deep. Works best on documents with clear typographic hierarchy — books, reports, manuals. Conversion runs in your browser.
🔒 Security & Privacy
All processing happens on your device. Your files never leave your browser, never touch our servers, and are not stored anywhere. Close the tab and the file is gone.
📱 Use it on any device
Works in any modern browser — Mac, Windows, Linux, iPhone, Android, and tablets. No installation, no app to download. Just open the page and start.
⚡ Quick & easy
Drag, drop, click. Most files process in seconds, not minutes. No watermarks added to your output, no per-day limits, and the tool always shows the result before asking you to download.
🎁 Always free, no signup
Free to use, every time. No account creation, no email required, no “trial” that converts to a paid plan. We make money from ads so you don’t have to pay.