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NI WAYAN ASTARI

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Background Remover

Turn a scanned or photographed signature into a clean transparent PNG, ready to stamp onto documents.

Used 2 times

Drag an image here, or

Defaults to white — change this if your scan is on cream or gray paper.

Higher tolerance removes more shades close to the background color — raise it for uneven lighting or shadows in the scan.

Your result with a transparent background appears here.

How to use it

  1. 01Upload a photo or scan of your signature (or any image with a flat background).
  2. 02Pick the background color to remove — defaults to white.
  3. 03Adjust tolerance until the background is fully gone without eating into the signature.
  4. 04Download the transparent PNG.

Is my file uploaded?

No — background removal happens entirely in your browser on an HTML canvas. The image is never uploaded to a server.

FAQ

Does this work on any photo, or just signatures?
It works best on images with a single flat, even-colored background — signatures on plain paper are the ideal case. It won't cleanly separate a subject from a complex photographic background (like a person against a busy scene), which needs a different kind of tool (AI-based segmentation) that isn't included here.
Why is there still a faint edge around my signature?
Scanned images often have soft shadows or anti-aliased edges. Try increasing the tolerance slightly, or make sure "Soft edges" is on for a cleaner blend rather than a hard cutoff.
What if my paper isn't pure white?
Use the color picker to sample or set the actual background color (e.g. a cream or light gray) instead of the default white — the removal will be far more accurate.

Built by Ni Wayan Astari — Performance Marketer with a strong interest in data and technology. See more free tools or selected work.