Reduce a signature image to 20 KB
Get a signature image under 20 KB for online application forms, right in your browser.
or drop signature images here
🔒 Your file never leaves your device
How to reduce a signature image to 20 KB
- Sign on plain white paper with a dark pen, take a photo or scan, and choose that image.
- The limit is already set to 20 KB. If the form gives exact pixel dimensions, open "Exact dimensions" and enter them.
- Click Shrink files and download the signature, now under 20 KB.
Why use Bynd PDF
- Private by design. Your files are processed inside your browser and never uploaded.
- Free, with no sign-up. No account, no watermark, no daily limits.
- Fast. No uploading or downloading a copy — the result is ready as soon as it is processed.
Popular sizes
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Frequently asked questions
How do I make a signature file under 20 KB?
Add the photo or scan of your signature and press Shrink files. The tool finds the best quality that stays under 20 KB. 20 KB leaves a signature a little more detail, and it is a common limit on application forms.
Will the background stay white?
Yes, the result has a white background. When you enter exact dimensions, choose "Fit inside on white" so nothing is cut off.
Can I use a photo taken with my phone?
Yes. Take the photo in good light, crop tightly around the signature if you can, and add it here.
Are my files uploaded to a server?
No. Bynd PDF runs entirely in your browser, so your files are processed on your own device and never sent to us or anyone else.
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