PDF summary → JSON

Extract the summary (bookmarks / outline) from a PDF and export it in JSON format, locally in your browser.

Import a PDF

No data is sent to a server: everything is done in your browser.

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Use cases

Check an outlineVerify that bookmarks exist, are in the correct order, and point to the right pages.
Migration / transformationConvert a PDF outline into navigation for a web viewer, a mobile app, or a document management system.
Automatic table of contents generationReuse the structure of bookmarks to produce an HTML ToC or an index.

What you get

A tree-structured JSON of bookmarks: title, level, child/next/previous, style (bold/italic) if present.

The associated destinations (target page, coordinates/zoom) when they are resolvable.

Limits and points of attention

Many PDFs do not have bookmarks: in this case, the export will be empty, which is normal.
Some destinations are "named" or indirect: they may require partial resolution depending on the PDF.
For encrypted PDFs, access may be limited.

Frequently asked questions

Is the outline and the "table of contents" the same?

The PDF outline is the side navigation. The table of contents can also be a page in the document.

Does the tool find the exact page?

Often yes. Depending on the PDF, the destinations may be indirect and harder to resolve.

Can I rebuild a table of contents elsewhere?

Yes: JSON serves as a basis to recreate navigation in another format.

Tip

For a clean migration, also export "PDF Pages → JSON": you will be able to validate that each bookmark destination points to an existing and correctly sized page.