BYTETOOLS

PDF Comment and Annotation Extractor

Pull sticky notes, highlights, underlines, strikeouts and text boxes out of a reviewed PDF with author, date and page, then export as CSV or Markdown.

Drop a reviewed PDF here or click to browseComments are read in your browser — the document is never uploaded

What is the PDF Comment and Annotation Extractor?

Getting review comments out of a PDF normally means Acrobat's comment summary. This tool does the same job in your browser: it reads every markup annotation on every page — sticky notes, highlights, underlines, strikeouts, rectangles, freehand ink, stamps and text boxes — and lists them with the reviewer's name, the date and the page number.

  • Covers notes, highlights, underlines, strikeouts, shapes, ink and stamps
  • Shows the reviewer name and the date recorded in the file
  • Colour swatch for each annotation so highlight colours stay meaningful
  • Filter by reviewer or hide markup with no written comment
  • Exports as CSV, Markdown or plain text
  • Runs entirely in your browser — nothing is uploaded

How to use the PDF Comment and Annotation Extractor

  1. 1

    Drop a reviewed PDF onto the upload area.

  2. 2

    Read the table of annotations with their page, type, author and text.

  3. 3

    Filter to one reviewer, or untick the box to include markup with no comment.

  4. 4

    Choose CSV, Markdown or plain text from the Export format dropdown.

  5. 5

    Copy the summary or download it as a file.

About the PDF Comment and Annotation Extractor

Getting review comments out of a PDF normally means Acrobat's comment summary. This tool does the same job in your browser: it reads every markup annotation on every page — sticky notes, highlights, underlines, strikeouts, rectangles, freehand ink, stamps and text boxes — and lists them with the reviewer's name, the date and the page number.

A colour swatch beside each row shows the highlight colour the reviewer used, which is often how teams separate one round of feedback from another. Filter by reviewer, or hide markup that carries no written comment, then export as CSV for a tracker or Markdown for a pull request.

The document is parsed locally with pdfjs and never uploaded, so drafts under embargo and legal redlines stay on your own machine.

Frequently asked questions

How do I export comments from a PDF without Acrobat?

Drop the file here and every markup annotation is read straight out of the page objects, then shown as a table you can export as CSV or Markdown. No sign-up, no install, and the document never leaves your browser.

Why do some highlights have no text next to them?

A highlight only stores the text the reviewer typed into its note, not the words underneath it. If somebody highlighted a paragraph without adding a comment, there is nothing written to show — untick the filter to see those rows anyway.

Can I see who made each comment?

Yes, when the reviewer's PDF app recorded a name. That comes from the annotation's title field, which most readers fill in from the user profile. Comments made by an app that leaves it blank show as unknown.

What do the dates mean?

They are the modification timestamps stored in the file, shown exactly as recorded including the reviewer's UTC offset. That is deliberate — converting them to your own timezone would change what the document actually says.

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