Make a signature transparent

Photograph your signature on white paper and get the ink on a transparent background.

How to use it

Sign on plain white paper, take a photo and choose it here. The card reads how bright the paper is in small patches across the photo, so the shadow of your phone goes with the paper, then keeps each pixel by how much darker than the paper it is: the ink stays, thin strokes keep a soft edge, and the empty paper around the signature is trimmed off. The ink comes out black.

  1. Click Choose a signature photo. On a phone, tap the button and pick the photo you just took; on a computer you can also drop it on the page.
  2. Wait for the card to say Ink on transparent. The canvas shows the strokes on the checkerboard, already trimmed to the signature.
  3. Leave Transparent selected and click Download PNG, then insert the PNG into your document or email signature.
  4. For blue ink instead of black, close the card and choose Layer > Layer Style > Color Overlay. The color is already a bright blue; click the swatch to pick a darker one, click OK, then choose File > Export > Export As and save a PNG.
ItemDetails
OpensOne photo or scan at a time: JPG, PNG or HEIC
GivesPNG with transparency, black ink, trimmed to the strokes
Where it runsIn your browser; the card doesn't upload the photo, and it isn't added to recent files or saved automatically

Ruled or colored paper, a light-blue ballpoint and strokes inside a deep shadow are too close to the paper in brightness, and parts can drop out: retake the photo flat on white paper in even light, with a darker pen. The card judges brightness only, so a colored stamp next to the signature is kept and turned black too. Use the original photo from your camera roll, not a copy that has been through a chat app.

Why does my signature show a white box in Word or Gmail?
The file you inserted is a JPG, and a JPG can't hold transparency. Insert the PNG from this card instead.
Why did a gray patch stay where the shadow was?
Usually it doesn't: the paper is read patch by patch, so a shadow that darkens the paper gently goes with the paper. In the sample, the phone's shadow darkens the lower right of the photo and reaches the last letters of the name; no gray is left around them. A hard-edged, very dark shadow can leave a patch; retake the photo in more even light.
Is this a legal electronic signature?
It is a picture of your handwriting, not an e-signing service. Whether a picture of a signature is accepted is up to whoever receives it. Use it only for your own signature.

Updated 2026-10-24

More toolsTransparent backgroundCompress imageResize image

English简体中文

Make a signature transparent

Photograph your signature on white paper and get the ink on a transparent background.

How to use it

Sign on plain white paper, take a photo and choose it here. The card reads how bright the paper is in small patches across the photo, so the shadow of your phone goes with the paper, then keeps each pixel by how much darker than the paper it is: the ink stays, thin strokes keep a soft edge, and the empty paper around the signature is trimmed off. The ink comes out black.

  1. Click Choose a signature photo. On a phone, tap the button and pick the photo you just took; on a computer you can also drop it on the page.
  2. Wait for the card to say Ink on transparent. The canvas shows the strokes on the checkerboard, already trimmed to the signature.
  3. Leave Transparent selected and click Download PNG, then insert the PNG into your document or email signature.
  4. For blue ink instead of black, close the card and choose Layer > Layer Style > Color Overlay. The color is already a bright blue; click the swatch to pick a darker one, click OK, then choose File > Export > Export As and save a PNG.
ItemDetails
OpensOne photo or scan at a time: JPG, PNG or HEIC
GivesPNG with transparency, black ink, trimmed to the strokes
Where it runsIn your browser; the card doesn't upload the photo, and it isn't added to recent files or saved automatically

Ruled or colored paper, a light-blue ballpoint and strokes inside a deep shadow are too close to the paper in brightness, and parts can drop out: retake the photo flat on white paper in even light, with a darker pen. The card judges brightness only, so a colored stamp next to the signature is kept and turned black too. Use the original photo from your camera roll, not a copy that has been through a chat app.

Why does my signature show a white box in Word or Gmail?
The file you inserted is a JPG, and a JPG can't hold transparency. Insert the PNG from this card instead.
Why did a gray patch stay where the shadow was?
Usually it doesn't: the paper is read patch by patch, so a shadow that darkens the paper gently goes with the paper. In the sample, the phone's shadow darkens the lower right of the photo and reaches the last letters of the name; no gray is left around them. A hard-edged, very dark shadow can leave a patch; retake the photo in more even light.
Is this a legal electronic signature?
It is a picture of your handwriting, not an e-signing service. Whether a picture of a signature is accepted is up to whoever receives it. Use it only for your own signature.

Updated 2026-10-24

More toolsTransparent backgroundCompress imageResize image

English简体中文