Compress Image to 20 KB
Signature uploads and some photo fields only accept files under 20 KB. Add a photo or scan of your signature and it is saved with the best quality that fits under the limit, made smaller in pixels only when needed. Your images never leave your device.
How to use Compress Image to 20 KB
- Select a photo or scan of your signature, or any other image (JPG, PNG, WebP...).
- Keep 20 KB as the maximum size, or enter the limit your form asks for.
- Click "Compress images". One image downloads directly; several images download as a ZIP file.
Frequently asked questions
Can a signature really fit in 20 KB?
Yes. A signature is mostly white paper, which compresses very well. For best results, crop the photo close to the signature and take it in good light before compressing.
Will the file be under 20 KB for the form?
Yes. The file is at most 20,000 bytes (a KB is counted as 1,000 bytes), so it is under the limit however the form counts. Images already under 20 KB are kept as they are.
Are my images uploaded?
No. The images are compressed in your browser, so they never leave your device.