Make a transparent signature from a photo

Sign a sheet of white paper, take a photo and drop it here: the paper, shadows and specks are removed, the ink becomes black, blue or keeps its own color, and you get a cropped PNG with a transparent background.

Your files never leave your device. Everything runs in your browser.

How it works

  1. Photograph your signatureSign on white paper and take a sharp photo in good light.
  2. Add the photoDrop it here; the paper is removed right away.
  3. Download or use itDownload the PNG or send it to Sign PDF.

From paper to a clean signature image

A signature drawn with a mouse rarely looks like your real one. A better way is to sign on paper with a pen, take a photo with your phone and turn it into a transparent image. You can then place it on contracts, forms, invoices, letters and email signatures.

The tool compares every pixel with the brightness around it instead of using one fixed limit. That is why a photo with a shadow across the page, a yellowish lamp or a darker corner still gives clean ink and an empty background.

Ink color, specks and straightening

Black and Blue recolor the whole signature evenly, which looks crisp on documents. Original keeps the color of your pen, including small variations in the ink.

Sensitivity decides how faint a line can be and still count as ink: raise it for a thin pencil or a light ballpoint, lower it if paper texture appears. Remove specks drops small dots of dust or noise, and Ignore dark areas at the edges removes the table or paper border when they are in the picture. Straighten finds the angle of the writing and levels a signature photographed at a slight tilt.

Use it in a PDF

Next step sends the signature to Sign PDF, where it is placed on the page as soon as you open your document, or to Edit PDF for forms and other edits. The PNG stays only in your browser during the handoff.

A signature image is a picture of your handwriting, not a certified digital signature. It is accepted for many everyday documents; for legal processes that require a qualified electronic signature, use the service your institution names.

Frequently asked questions

Is my signature uploaded or saved anywhere?

No. The photo is processed in your browser and nothing is stored on a server. Close the page and it is gone.

How do I get the best result?

Sign on plain white paper with a dark pen, photograph it from straight above in daylight and fill most of the frame with the signature.

Parts of my signature are missing. What can I do?

Raise Sensitivity, and lower Remove specks if small dots like an i dot vanish.

Why is the background not fully clean?

Lower Sensitivity a little, raise Remove specks, and keep Ignore dark areas at the edges on.

Is this a legally valid electronic signature?

It is an image of your handwritten signature. Whether that is enough depends on the document and the country; qualified e-signatures need a certified provider.

Can I use a scan instead of a photo?

Yes. Scans usually give the cleanest result.