Signature Resizer & Cleaner Free
Sets a photographed signature to the exact pixel and KB size your form needs. It comes out looking like what you uploaded; whitening the paper is there if you want it.
How to use it
- Choose your image, or drag it onto the page.
- Drag the picture to position it, and pinch or scroll to zoom.
- Set the options on the right. The result updates as you change them.
- Check the result, then press Download.
About Signature Resizer & Cleaner
A signature photographed on paper is almost always far too large for a portal that wants it small and inside a tight KB limit. This resizes it to the dimensions the form asks for and compresses it into your KB range, and by default it looks exactly like the picture you uploaded. If the paper came out grey or shadowed, switch the paper background to whitening and it pushes the paper toward white and the ink darker, keeping the soft edges of the stroke.
Good to know
- Sign with a black or dark blue pen on unlined white paper. A ballpoint that skips will still skip after cleaning.
- Photograph straight down in daylight. A shadow across the page becomes a grey band that whitening cannot fully remove.
- Signature boxes are wide and short, 140x60 pixels being common, so crop close to the strokes first or your signature ends up tiny inside empty space.
Questions
My signature looks faint after whitening. Why?
The ink was too light against the paper, so the whitening lifted part of the stroke toward the background. Lower the whitening amount, or set the paper background back to keeping it as uploaded, which is the default.
Can I scan instead of photograph?
Yes, and a scan at 200 or 300 DPI is ideal because the lighting is even by definition. Save as JPG or PNG and the tool handles the rest.
Why does the form want a separate signature file?
Portals match the signature on your form against the one you write in the exam hall. That is also why you should upload the signature you actually use, not a neater version.
Will whitening change the shape of my signature?
No. It only adjusts how light or dark each pixel is, and it leaves the soft edge of the stroke intact. Strokes are never moved, thinned or redrawn. Leave the paper background on keep-as-uploaded and nothing is changed at all.
Is my file uploaded anywhere?
No. Everything runs inside your browser using your own device. Your file never leaves it, and we never see or store it. You can even disconnect from the internet and the tool still works.
Is it really free?
Yes. No account, no daily limit, no watermark on your files. The site is paid for by ads.