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PDF Annotation Inspector

List every annotation in a PDF in your browser: links, highlights, notes, form widgets — with page, text and destination, exportable as CSV.

Choose a PDF

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Choose a PDF to see its outline here.

Your file is never sent to a server. It is read and processed by your own browser, and the results are not stored.

How to use it

  1. Choose a PDF.
  2. Review the annotations found — page, subtype, text and destination.
  3. Download the CSV report, or use the link extractor for just the URLs.

Limits worth knowing

  • Read-only: the document is never modified.
  • Annotations are reported with the subtype the PDF declares; malformed entries are shown with a best-effort label.
  • Very large annotation sets are listed; the CSV holds everything found.
  • Encrypted PDFs are refused.

Why annotation inventories matter

Legal, compliance and QA workflows routinely need to know what a PDF claims: every outgoing link, every highlight, every note. Doing that by eyeballing pages does not scale; doing it by reading the file object structure is exact. This tool is that inventory, with a CSV at the end.

Graphics annotations (freehand ink, images) are listed too — as subtypes, not as images.

What subtype means

The subtype is the annotation’s declared kind — Link, Highlight, Text, FreeText, Widget. It comes straight from the file, so it is authoritative, but it is not a promise of anything about visual appearance or workflow intent.

Frequently asked questions

Does PDF Annotation Inspector upload my files to any server?

No. PDF Annotation Inspector runs in your browser, and the file is read there rather than sent to a server for processing. Our host still sees ordinary page-request metadata, which is described on the privacy page.

Is PDF Annotation Inspector free to use?

Yes, PDF Annotation Inspector is free, with no paid tier, no account, and no watermark added to your output. The limits are technical rather than commercial: file size, page count and supported formats are listed on this page.

What file formats and sizes are supported?

PDF Annotation Inspector supports .pdf files up to 100MB directly in your browser.

Does it change the PDF?

No. It is strictly read-only: nothing is modified, flattened, printed or uploaded. You get an inventory.

What does it find?

Everything the renderer sees: link annotations (URLs and internal destinations), text notes, highlights, stamps, free-text, file attachments and form-widget visuals. The subtype reported is the one the PDF declares.

Can it export the list?

Yes — download a CSV with page, subtype, text, target and destination page for every annotation, ready for a review log or spreadsheet.

Is my file uploaded?

No. The PDF is inspected in this tab; the annotation data never leaves your device.