Complete guide to using PDF Annotation Extractor — a free online tool by akousa.net.
Get started in seconds — no signup required
The PDF Annotation Extractor pulls all annotations from PDF documents — including highlights, sticky notes, underlines, strikethroughs, free text, and ink drawings — and organizes them into a structured, exportable format. PDF annotations are the standard mechanism for collaborative review and feedback in academic, legal, and publishing workflows. The tool also performs intelligent entity detection on highlighted text, identifying embedded dates, monetary amounts, email addresses, URLs, and phone numbers. Everything runs in your browser using PDF.js, keeping your annotated documents completely private.
Opens instantly with no app install.
Use reduced samples and avoid secrets when working with sensitive data.
Download your results in multiple formats
Fully responsive design works on any device
Upload an annotated PDF file to instantly extract all annotations. Filter by annotation type (highlight, note, underline, etc.), sort by page number, date, or color, and switch between page view, color view, and data table view. Export results as plain text, Markdown, JSON, CSV, Obsidian-formatted Markdown, or a digest summary. The Detected Data panel shows structured entities extracted from highlighted passages.
PDF Annotation Extractor is a free tool for fast everyday work with no signup required for basic use. It helps you get instant results, review them, and move on without installing a separate app.
Developers, designers, students, and everyday users rely on this tool for quick, accurate results. It's especially popular among people who need a reliable utility without installing software or signing up for an account.
Looking at alternatives to PDF Annotation Extractor? Here's how we compare to similar tools available online.
| Feature | akousa.net | Other tools |
|---|---|---|
| Price | Free forever | Often paid or freemium |
| Privacy | Privacy-conscious workflow | Varies by provider |
| Signup | Not required | Account often required |
| Ads & tracking | None | Ads and trackers common |
| Usage limits | Unlimited | Daily or file-size limits |
Add PDF Annotation Extractor to your own website with a single line of code — free, no signup required.
Get embed codePDF Annotation Extractor is also available as a developer API for use in your own apps and workflows.
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