Annotate PDF
Add pen marks, transparent highlights, and text labels on PDF pages with a local overlay workspace. Processing stays in your browser and files never leave your device.
Before you start
Upload
Upload one PDF and select a page to annotate with pen, highlight, or text tools.
Result
Apply annotations to embed them into a new PDF, then download the annotated file.
Local processing
Processing runs in your browser session. Files are not uploaded by default.
Limitations
This is a best-effort local annotator and does not include threaded comments or collaborative review.
Drop a PDF here, or click to browse
Local-only annotation workspace with no upload step
Click or drop files to continue
Stroke width (4px)
Pen colour
Related resources
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