Compress image to 20KB
Free tool to compress JPG or PNG to 20 KB or less for signatures and strict form uploads. Runs in your browser.
Drop an image here, or click to browse
JPG, PNG, WebP, or GIF
When you need 20 KB or less
Signature uploads, small ID photos, and legacy form systems often reject anything over 20KB. Instead of guessing quality settings in an editor, set 20KB as your target and download a file that lands at or just under it — the tool aims as close as possible without exceeding the cap.
20KB is a very small budget, so the source matters. A tightly cropped signature on a white background compresses far better than a full-page scan, because there is less detail to store. Crop close to the ink or the face before you compress.
Signatures vs photos at 20KB
A signature is mostly white space with thin dark strokes, so it stays crisp even at 20KB. A color headshot has far more detail, so at 20KB it will look softer — acceptable for a thumbnail, but crop tightly and keep the face large in the frame for the best result.
If your form also specifies pixel dimensions, use the Form Photo Checker instead so the size and dimensions are handled together.
Fix a specific requirement
If your form also specifies dimensions or a format, these pages fix everything in one step.
Frequently asked questions
- Why do forms require 20KB photos?
- Some government and exam portals cap uploads at 20KB. Whatever the reason, ExactPic hits that limit without uploading your file anywhere.
- Will my image quality be usable at 20KB?
- For small headshots and signatures, yes. ExactPic reduces quality and dimensions until the file fits under 20KB.