Free Online PDF Table of Contents Auto Generator - ATools

Free online PDF TOC generator: Enter page numbers and titles, automatically generate table of contents page and insert into PDF (pure frontend local processing).

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支持拖拽新 PDF 到此区域直接替换

TOC Content

Line format: Page Number TAB Title. Use #/##/### to mark sidebar bookmark levels.

After upload, existing PDF sidebar bookmarks will be imported first.

Parsed 3 items.

Settings

TOC TitleInsert at PDF beginningTOC page numbers auto +1 after insertion (only effective when inserting at beginning)Create clickable TOC pageCreate PDF sidebar bookmarksReplace detected old TOC pages

Title fontTitle colorTitle sizeItem fontItem colorItem size

Output

Tips & Browser Limitations: 1. PDF Outline Compatibility: The generated bookmarks follow the standard PDF Document Outline (/Outlines) specification and display fully in Microsoft Edge, Adobe Acrobat, Foxit, Mac Preview, etc. 2. Chrome Viewer Note: Chrome's built-in viewer may default to thumbnails or its own heuristic Sections; to view the generated outline in Chrome, click the sidebar icon at the top-left and switch to the [Document outline] tab. 3. TOC Page Rendering: To ensure consistent cross-platform Chinese font and dotted line layout, TOC pages are rendered as high-resolution images. Viewers that scan raw text streams for sections will not extract text directly from the TOC page.