Annotate PDF Online Free

Add comments, sticky notes, highlights, and markup to any PDF. No sign-up required.

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or drop your file here
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Everything you need to annotate PDFs

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Sticky Notes

Add comments and sticky notes to any location on the page.

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Highlight & Markup

Highlight, underline, and strikethrough text.

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Freehand & Shapes

Draw freehand, add arrows, lines, rectangles, and circles.

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100% Private

Your PDF is processed in your browser. Nothing is uploaded to any server.

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Works Everywhere

Windows, Mac, Linux, Chromebook — any device with a browser.

No Sign-Up

Start annotating immediately. No account, no email required.

How it works — 3 steps

1

Open your PDF

Select a PDF file or drag it into the editor.

2

Add annotations

Use sticky notes, highlights, drawings, or shapes to mark up the document.

3

Download annotated PDF

Click Download to save your annotated document.

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