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Signature to transparent PNG

Crop a scanned signature and drop the white paper so you get a PNG you can place on a document.

Processed in your browser. You set the threshold, and the result is a transparent PNG.

About this tool

Make a scanned signature a transparent PNG.

White and near-white paper becomes transparent. Raise the threshold if gray paper remains. Crop is the full image you upload, so crop in your gallery first if the page is large.

Quick steps

  1. Upload the signature scan.
  2. Move the threshold until the ink stays and the paper goes.
  3. Download PNG.

Processed in your browser.

FAQ

Will blue ink work?

Yes, if it is darker than the paper. Very light pencil may disappear with the background.

A useful next step

Document Scanner Photograph or upload a page, straighten the corners, clean the scan, and save a PDF. Images to PDF Combine JPG/PNG images into one PDF on your device — nothing uploaded. Blur or cover part of a photo Hide a phone number, face, or address with blur or a solid cover, then download the image.

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