Skip to main content
Loading...

Mark up any PDF directly in your browser. Add highlights, sticky notes, comments, and freehand drawings to review documents, give feedback, or study — then download the annotated file. No signup required.

How to Annotate a PDF Online

1

Upload the PDF you want to annotate.

2

Choose a tool: highlighter, note, comment, or pen.

3

Mark up the document anywhere you like.

4

Download your annotated PDF.

Why Choose Docorio?

Full Markup Toolkit

Highlights, sticky notes, comments, and freehand drawing.

Great for Feedback

Review contracts and drafts and share clear notes.

Browser-Based

No software or signup — annotate instantly online.

Frequently Asked Questions