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Free tool

Transparent signature maker — photo to PNG

Drop in a photo or scan of your signature and get the ink on a transparent background, ready for certificates, Word, and PDFs. It runs in your browser, so your signature is never uploaded.

  • No signup
  • Never uploaded
  • Optional AI cleanup
  • Transparent PNG

Make your signature transparent

How it works

From paper to PNG in three steps

The tool compares each pixel with the paper around it, so shadows and uneven light don't come out as ink.

  1. 01

    Photograph your signature

    Sign plain white paper with a dark pen and take a photo in even light, or use a scan.

  2. 02

    Drop it in

    The paper disappears and the ink stays. Adjust the sensitivity if faint strokes are missing or specks appear.

  3. 03

    Download the PNG

    You get the ink on a transparent background, cropped close, ready to place on a certificate or document.

Tips

Getting a clean result

  • Sign on plain white paper with a black or dark blue felt-tip or gel pen.
  • Photograph it in daylight or under bright, even light, with no shadow from your phone or hand.
  • Hold the phone flat above the page, and fill most of the frame with the signature.
  • Turn on AI cleanup if the desk or the edge of the page is in the shot.
  • Check the result on the checkerboard: solid strokes, and nothing around them.

Related guides and tools

Frequently asked questions

About transparent signatures

How do I make my signature transparent?
Sign a plain white sheet with a dark pen, take a photo of it in even light, and drop the photo into the tool. It removes the paper and keeps the ink. If faint strokes go missing or grey specks appear, move the sensitivity slider, then download the PNG.
Is my signature uploaded anywhere?
No. The photo is processed in your browser and never leaves your device. That includes AI cleanup: the model is downloaded to your browser and runs there.
What does AI cleanup do?
It finds the sheet of paper in the photo and removes everything around it: the desk, the edges of the page, and the shadows along them. Use it for phone photos where more than the paper is in the frame. It's off by default because it's a one-time download of about 19 MB, which your browser keeps for next time. It won't remove things lying on the paper, such as a pen, so move those before you take the photo.
Which pen and paper work best?
A black or dark blue felt-tip or gel pen on plain white paper. Ballpoint works but comes out thinner. Lined or colored paper can leave faint lines behind. Sign a little larger than usual and fill most of the photo with the signature, so it stays sharp when it's shrunk onto a document.
Why does my signature have gaps or grey specks?
Gaps mean the sensitivity is too low for a light pen stroke. Specks mean it's high enough to pick up paper texture or shadows. Move the slider until the strokes are solid and the background is clear. If a strong shadow falls across the signature, retake the photo in daylight without your phone or hand blocking the light.
Can I use a photo from my iPhone?
Yes. When you upload straight from an iPhone, it converts the photo to JPEG for you. iPhones store photos as HEIC files, which most desktop browsers other than Safari can't open, so if you've copied the photo to a computer and it won't load, open it and save or export it as a JPEG first.
How do I add the signature to a certificate or document?
Download the PNG and place it as an image above your printed name. In Word, choose Insert > Pictures and set Wrap Text to In Front of Text. In CertSeal's certificate maker, upload it once and it appears on every certificate you issue from that design.

Signing a whole stack of certificates?

Upload the signature once and CertSeal puts it on every certificate you issue, along with each recipient's name, a verification link, and a QR code. Free to start, no credit card required.

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