Sign PDF
Draw or upload a signature and place it
Drop files here
or — you can also paste with ⌘V
One PDF file · up to 300 MB each
This tool runs entirely inside your browser. Your files are never uploaded, never stored, and never seen by anyone but you.
How to sign a PDF
- Drop your PDF onto the page.
- Draw your signature with a finger, trackpad or stylus — or type your name, or upload a photo of a signature you have already written.
- Drag it onto the signature line and drag the dot to size it. Arrow keys nudge it; hold Shift to move further.
- Sign, then download.
Photographing a signature
Sign a white sheet in dark ink, photograph it straight on in good light, and upload it. Remove the paper background turns the white transparent so the signature sits on the page rather than in a white box. If grey paper still shows through, drag Background removal to the right; if parts of the ink start disappearing, drag it back left.
Is this a legally binding e-signature?
It is a picture of your signature drawn onto the page — the same standing as a signature on a printed page that has been scanned, which for most everyday agreements is accepted. It is not a cryptographic digital signature: nothing here certifies who applied it or proves the document has not changed since. Where you need that, you need a certificate-based signing service.
Does my signature leave my device?
No, and this is the tool where that matters most. Your signature is drawn, rasterised and embedded entirely in your browser. It is never uploaded, never stored, and is gone from memory when you close the tab. Nothing is remembered between visits — which does mean you will draw it again next time.
Initialling every page
Put a page range in Also sign these pages and the same mark goes in the same spot on each one. The position is measured against each page as it is displayed, so a document that mixes portrait and landscape still puts it in the right corner.
Limits
One file at a time, up to 300 MB, and signature images up to 20 MB. The signature is embedded as a transparent PNG, which adds a few kilobytes to the file however many pages it appears on.