How to Add a Table of Contents to a PDF
A table of contents in a PDF isn't just a list of titles on a page — the useful version is clickable, letting readers jump straight to a section instead of scrolling through dozens of pages.
Bookmarks vs. an in-page TOC
Bookmarks live in the viewer's sidebar and let readers navigate the document tree. An in-page TOC is a regular page with clickable links, visible even when printed. Stronger documents usually have both — bookmarks help digital readers, the in-page version helps anyone flipping through a printout.
Building the TOC page
List each section with its page number, and turn each entry into a clickable link if your tool supports it. Keep it in sync manually if you edit afterward — automated syncing usually only exists in the original word processor, not in a finished PDF.
Adding bookmarks
Most editors let you create a bookmark for a page, label it, and nest bookmarks into groups matching your document's structure. Worth doing for anything over roughly 15-20 pages, where scrolling alone gets tedious.
Test it before you send it
Click through every entry and bookmark before finalizing — a link pointing to the wrong page is an easy mistake to miss, especially if pages got added or removed after the TOC was first built.
