Edit & annotate
Draw on PDF
Freehand drawing with a mouse, trackpad or stylus.
How it works
- 1Upload your file — drag it in or pick it from your device.
- 2Choose the options you need; defaults work for most files.
- 3Press Process and watch the progress in real time.
- 4Download the result. Anonymous files are deleted shortly after.
What this tool does
- Accepts: .pdf · one file at a time
- Produces: pdf
- Runs on: the pdf worker, in an isolated process with a 3-minute ceiling
- Account: required, because the result is stored in your workspace
- API: available as
toolSlug: "draw-pdf"
Questions
Does it work on a tablet?
Yes. Touch and stylus input work as well as a mouse. Strokes have one width you choose; pressure is not recorded.
Can I erase part of a stroke?
Strokes are erased whole. Undo removes the most recent stroke.
Security note
Files are checked to be what they claim (by content, not extension), processed in a sandboxed worker with no network, and deleted on the schedule your plan sets. We do not run antivirus and do not claim to — please do not upload files you do not trust. Read the security page.