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Signature Resizer
Forms often want a small signature image, for example 140 × 60 px under 50 KB. Photo your signature on plain white paper, choose it here, set the size the form asks for and download it.
Form rules change often. Always check the official notification for the exact size, format and file-size limit before you upload.
How to use
- Sign with a dark pen on plain white paper and take a clear photo in good light.
- Choose the photo here.
- Type the width, height and KB limit from the form. Defaults are 140 × 60 px and 50 KB.
- Tap Resize signature and download the file.
Use "Fit inside with white space" so the signature is not stretched. Use "Crop to fill" if you want it to fill the whole box. If you need to trim extra paper first, use the image cropper.
Questions and answers
What size should a signature be for forms?
It depends on the form. Common limits are 140 × 60 px or 3.5 × 1.5 cm, and 10 KB to 50 KB. Always read the instructions on the form you are filling.
How do I make my signature clear?
Use a black or blue pen on plain white paper, take the photo in daylight without shadows, and crop away extra space before resizing.
Can I reduce a signature to 20 KB?
Yes. Change the maximum file size to 20 and tap the button.
Is my file uploaded anywhere?
No. This tool runs inside your browser. Your file stays on your phone or computer and is never sent to our server.
Is this tool free?
Yes. It is free, needs no sign-up and has no daily limit.