Annotate PDF
Add highlights, comments, shapes and freehand drawing to a PDF. Client-side.
Runs in your browserUpdated
Don't take our word for it
Open your browser's Network tab and watch: your file never leaves this page. Or load this tool, turn off your internet, and it still works.
Drop a PDF here or click to browse
Runs in your browser — your file is never uploaded.
How to annotate pdf
Add highlights, comments, shapes and freehand drawing to a PDF. Client-side. To use Annotate PDF: 1) add your file by dragging them in or clicking to browse, 2) adjust the edit options, 3) download your result — done in seconds. It's free, needs no signup, and most tools run right in your browser so your files never leave your device.
Mark PDF reviews clearly
Choose one color or mark type for each review purpose. Add comments that state the change needed, not just the problem. Scan every page after saving because freehand marks can cover small text.
Frequently asked questions
- Is Annotate PDF free to use?
- Yes. Annotate PDF is free to use. It's free, needs no signup, and most tools run right in your browser so your files never leave your device.
- Are my files safe and private?
- Completely. Annotate PDF processes your file directly in your browser, so it is never uploaded to any server.
- Do I need to install anything?
- No. Annotate PDF works in any modern web browser on Windows, Mac, Linux, iPhone and Android — nothing to install.