Annotate PDF Files Online

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How To Annotate a PDF File:

1. Drag and drop your PDF into the box above 2. Click on the blue button Annotate PDF Now 3. Wait a few seconds, the annotation editor will open 4. Choose the highlighter, note, pen or stamp and mark up your pages 5. Save your changes and download the annotated PDF

Highlight PDF Text

Pull out the sentences that matter with the highlighter and pick whichever color suits your reading system. Highlights sit on top of the original text, so nothing underneath is lost.

Add Comments and Sticky Notes

Leave a question, a correction or an instruction anywhere on the page. Notes stay attached to the exact spot you placed them, so whoever opens the file next knows what you meant.

Draw, Circle and Stamp

Use the freehand pen to circle a figure, add arrows and shapes to point something out, or drop a stamp such as Approved or Reviewed onto the page. It is the quickest way to sign off on a document.

Marked Up In Your Browser

The annotator works inside your browser, so your file is never processed on a conversion server. Anything you upload is removed automatically after two hours.

Annotate PDF Free

There is no charge, no account to open and no watermark. Mark up as many PDFs as you want and download every annotated copy for free.

Marks That Open Anywhere

Your highlights, notes and drawings are stored as standard PDF annotations, so they show up in Acrobat, Preview, Chrome and any other PDF reader your colleagues use.