How to use Compress Image to 20 KB
- Add the photo or scanned signature. A clear image with a plain background works best.
- The target is already set to 20 KB. Keep JPG unless the form asks for another format.
- Click "Compress to 20 KB". Quality is lowered first; the image is made smaller only if it has to be.
- Download the file and check its size before uploading it to the form.
Why use Compress Image to 20 KB
Always under the limit
Files stay under 20,000 bytes, so they pass whether a form counts a kilobyte as 1,000 or 1,024 bytes.
Best quality that fits
Quality is lowered step by step, and the dimensions shrink only when they must.
Good for signatures
Signatures and simple images reach 20 KB easily and stay sharp.
Private
Your ID photo and signature never leave your device.
About this tool
A 20 KB limit is common for signature uploads and small photos on exam and job application portals, especially in India and Pakistan. A phone photo is often 2 to 5 MB, so it has to shrink by about 99%. That works because these forms only need a small image, usually a few hundred pixels wide.
For the sharpest result, crop the image to the face or signature first, and use a plain, light background, which compresses far better than a busy one. If the form also sets pixel dimensions, resize the image to them first with Resize Image, then compress it here.
Frequently asked questions
Why is my 20 KB photo blurry?
A 20 KB file only holds a small image. Crop to the face or signature first so the pixels go where they matter, and avoid dark or busy backgrounds.
Is 20 KB the same as 20,000 bytes?
Some sites count 1 KB as 1,000 bytes and others as 1,024. This tool keeps files under 20,000 bytes, so they pass either way.
Which files can I compress here?
JPG, PNG, WebP, BMP and GIF images. The result is a JPG unless you choose WebP.
What if the form also needs exact dimensions?
Set the width and height first with Resize Image, then compress the result here.
Is my signature uploaded anywhere?
No. The compression runs in your browser and the file never leaves your device.