Clean and resize your signature
Photograph your signature on white paper. The tool removes the background, crops the empty space and fits it to your form's size.
Runs on your device. Your files are never uploaded.
1. Choose your signature
Sign on plain white paper in dark ink, then photograph or scan it · or drop it here
2. Clean up
Removes paper texture and shadows, then crops the empty space around the signature.
Move right to keep faint strokes, left to remove shadows and smudges.
3. Set the size
Only needed when a form asks for a DPI value.
Your cleaned signature will appear here.
Questions
How should I sign for the best result?
Sign in black or dark blue ink on plain white paper, then photograph it in daylight without shadows, holding the phone straight above the page.
Parts of my signature disappeared. What do I do?
Move the ink threshold slider to the right. It keeps fainter strokes. Move it left if shadows or paper texture show up as black patches.
Is my signature uploaded?
No. Cleaning and resizing happen in your browser, and the image never leaves your device.
Can I keep my signature in blue ink?
Yes. Untick "Make it black ink on white" and the tool only resizes and compresses the photo as it is.