Remove the background from a signature
Free, no signup, and your image never leaves your device.
A signature photographed or scanned on paper is a near-perfect case: dark ink on a light, flat background, with nothing else in the frame.
Why these settings
Colour mode on the paper with connectivity off, so the enclosed loops in letters clear too. The tolerance runs higher than for a logo because paper is never one value — it has texture, a scanner gradient, and usually a shadow.
Settings to start from
- How to find the background
- By colour
- Tolerance
- 34
- Only the area connected to the edges
- Off
- File type
- PNG — transparent, lossless
Step by step
- Drop a signature onto the page, paste it, or choose the file.
- Apply the settings above — they are a starting point, not a rule.
- Check the edges at full size, and fix anything left with the brush.
- Choose transparent or a solid colour, then download.
What to watch out for
Thin strokes and the faint tail of a pen lift are the first things to disappear if the tolerance goes too high. If the signature starts breaking up, lower it and brush out the remaining paper instead.
Common questions
What is the best way to remove the background from a signature?
Use the settings above as a starting point, then check the edges at full size. Most of the work is choosing the right mode; the sliders only fine-tune it.
Is a signature uploaded to a server?
No. It is decoded and processed entirely in your browser, and nothing is sent anywhere. There is no server to send it to.
Is there a watermark or a limit?
Neither. No watermark is added, there is no cap on how many images you process, and no account is needed.