Clean up a scanned signature before placing it in a document
Prepare a scanned signature for forms and contracts. Remove paper color locally, compare the mask, and restore strokes before export.
or drop pictures here, or paste with ⌘ / Ctrl + V
JPG, PNG, WebP, AVIF, GIF or SVG. Up to 25 MB.Color removal works on your device without an AI model download. Privacy details
Clean up a scanned signature before placing it in a document
Repair paper texture, gray scanner noise, and enclosed gaps in a scanned signature with a transparent export and manual touch-up.
How to clean scanned signature noise before export
Inspect the source before masking
Open a 300 dpi paper scan and crop out unrelated text while keeping a quiet margin around the ink.
Repair scanner dust and page shadows one area at a time
Compare the preview on a dark canvas, then brush away gray paper texture inside loops.
Export an archived contract-ready signature
Choose PNG transparency, download the result, and keep the original beside it for review.
Choose the right source for this workflow
For a 300 dpi paper scan, use even light and a flat page. Leave a little canvas around each stroke so the mask can follow its contour.
Avoid screenshots and repeated re-exports; they exaggerate scanner dust and page shadows and make fine ink harder to separate.
Tune the mask for scanner dust and page shadows
Preview against two contrasting colors to find gray paper texture inside loops. Make small changes and compare with the source after every pass.
If a stroke becomes pale, lower the tolerance and use Restore on that short segment rather than rerunning an aggressive removal.
Save a reusable asset for an archived contract
Download a transparent PNG and label it with the signer, date, and intended use in an archived contract. Keep the source scan in a private folder.
The result is a visual image layer, so use formal signing or identity checks whenever the workflow requires them.
Scanner dust and page shadows: signature cleanup questions
Can this page handle a 300 dpi paper scan?
Yes. It accepts a 300 dpi paper scan and processes it in the current browser tab. A flat, sharp source gives the cleanest mask.
How do I remove scanner dust and page shadows?
Start with a conservative tolerance, inspect the edge at 100%, and use Erase only on gray paper texture inside loops.
What if the file includes marks beyond the signature?
Crop before processing, then use the brush for gray paper texture inside loops. The tool does not invent missing handwriting.
Where can I place the cleaned image?
A transparent PNG works well on an archived contract; check the signer and document authorization before sharing it.
Does batch or local processing change the original?
No. The original remains available in this tab and the exported copy is a separate file.
Choose another signature background tool
Edit a signature and download the clean result
Choose your signature file above to get started. No account or watermark.
Remove signature background