Key Features

Annotation extraction

Extract PDF highlights, comments & sticky notes to Markdown, Excel, Notion or Obsidian.

Structured files

Turn scattered highlights, comments, and sticky notes into clean, structured files ready for your notes app.

Highlight extraction

Pull out highlighted text while preserving colors (Yellow, Red, Blue). Perfect for literature reviews.

Comment extraction

Export sticky notes and pop-up comments into a structured list for easy review.

Combined extraction

Get everything at once. Combine highlights, underlines, and notes into a single file.

Annotation filters

Filter by color, author, or annotation type to focus on key insights.

Batch processing

Process multiple PDFs at once in a single session without repetitive file selection.

Offline extraction

Once the page loads, extraction can run without an internet connection.

Local processing

PDFs are processed with WebAssembly directly in the browser. Files are not uploaded to a server and document data does not leave the browser during extraction.

Research extraction

Extract scholarly highlights and references directly into your bibliography manager or Zettelkasten.

Pros

Processes PDF annotations entirely locally with no uploads, enhancing privacy.
Supports exporting to multiple popular formats including Markdown, Notion, Obsidian, CSV, and JSON.
Offers a free tier with core extraction features available forever without signup.
Works offline after initial load, allowing use without internet connection.
Supports filtering annotations by color and author for customized exports.

Cons

Does not support scanned PDFs without prior OCR processing.
Batch processing and advanced export features require a paid Pro subscription.
Currently requires individual export per PDF for free users; batch import to Obsidian is manual.
Limited to browsers supporting WebAssembly; best performance on latest Chrome.
No built-in OCR or annotation creation tools; relies on external PDF readers for annotation.