How to Add Bookmarks to a PDF

PDF bookmarks show up as a collapsible navigation tree in the sidebar of most PDF viewers, letting readers jump directly to a chapter or section instead of scrolling through the entire document to find what they need.

When bookmarks are worth adding

Any document over roughly 15-20 pages with distinct sections, like a report, manual, or long proposal, benefits from bookmarks. Short documents rarely need them, since scrolling through a five-page PDF isn't a real burden the way scrolling through an eighty-page one is.

Creating a bookmark

In most PDF editors, you navigate to the exact page and position you want to link to, then create a new bookmark and give it a clear, descriptive label, ideally matching the actual heading text on that page so readers aren't confused by mismatched labels.

Organizing bookmarks into a hierarchy

For documents with subsections, nest bookmarks under their parent chapter rather than listing everything as one long flat list. Most tools support drag-and-drop nesting in the bookmark panel, letting you build a structure that mirrors your document's actual outline.

Bookmarks vs. an in-document table of contents

Bookmarks only help readers viewing the file digitally, since they don't appear when printed. For documents that might also be printed, pair bookmarks with an actual table of contents page as well, so navigation works both on screen and on paper.