Reduce any image to under 20 KB
Government portals, exam registrations, job applications and university admissions often ask for a photo or signature “less than 20 KB”. Phone photos are usually 2–5 MB, so they are rejected. This tool finds the best quality that fits under 20 KB and, if needed, reduces the dimensions a little until it fits.
How to compress an image to 20 KB
- Drop your photo or scanned signature into the box above. The target is already set to 20 KB.
- Wait a moment while the tool tests different quality levels.
- Check the new size and pixel dimensions, then click Download.
Tips for the best result at 20 KB
- Crop first. A tightly cropped face or signature keeps more detail at 20 KB than a wide shot.
- Use a plain background for photos. Busy backgrounds use up the file size.
- Check the required dimensions. Many forms want something like 200 × 230 px. Resize with the image resizer before compressing.
- Signatures compress very well: sign in dark ink on white paper and scan or photograph in good light.
What format is the result?
The result is a JPG, which is accepted by almost every form. PNG files cannot be made this small reliably because PNG has no quality setting, so they are converted to JPG automatically.
Need a little more room? Try compress image to 50 KB. Everything runs in your browser, so your personal documents are never uploaded.
Frequently asked questions
How do I reduce a photo to exactly 20 KB?
Drop it into this tool. It searches for the highest quality that stays under 20 KB and reduces the dimensions only if it has to.
Will the image still be clear at 20 KB?
Passport-style photos and signatures stay clear at 20 KB, especially if you crop them first and keep a plain background.
Is it safe to compress ID photos here?
Yes. The image is processed on your device and is never uploaded to our servers.
Can I compress a PNG to 20 KB?
Yes. PNG files are converted to JPG so they can reach such a small size.