Your form wants at least 20KB and your photo is under it. Upload below and download a file that is exactly 20KB.
The target is already set to 20KB. Choose your image and hit Increase Size — the output matches the number exactly, and the picture is unchanged.
What needs a 20KB image?
Signatures, left thumb impressions and the strictest older portals. It is a tight budget for a photograph — at 20KB a colour portrait is right at the edge of where compression starts to show.
Commonly seen on: SSC signature uploads, India Post GDS signature, older state PSC portals.
How a file gets to exactly 20KB
- The tool finds the highest JPEG quality setting whose output still fits inside your target. That step genuinely adds encoding detail back to the image.
- If that lands short of 20KB, the remaining bytes are added inside a JPEG comment segment — a standard part of the format meant for notes and metadata.
- Every viewer, printer and verification system skips that segment, so your photo renders pixel-for-pixel identically. Only the byte count moves.
If your form wants a photograph at 20KB and it looks blocky, reduce the pixel dimensions first rather than compressing harder. A 300-pixel-wide image at 20KB looks far better than a 1200-pixel one at the same size.
If the upload still fails
- The form says too large. You are above the ceiling, not below the floor — reduce the size in KB instead.
- The form complains about dimensions. Pixels and kilobytes are separate rules. Resize by pixels to fix that one.
- The form rejects the format. Portals want JPG. Convert PNG, WebP or HEIC to JPG first.
Frequently asked questions
How do I increase a JPG to 20KB?
Upload your JPG above, confirm the target is set to 20KB, and download. The tool re-encodes at a higher quality setting and pads the file so it lands on exactly 20KB.
Will the photo still look the same at 20KB?
Yes. Raising a file size never removes detail. The tool increases the JPEG quality first, then pads the remainder inside a standard comment block that every image viewer skips.
Is the result exactly 20KB?
Yes, exactly — not 20 minus one or 20 plus two. Form validators reject anything outside their stated range, so close enough is not good enough.
Is my image uploaded anywhere?
No. Processing runs entirely in your browser on your own device. Nothing is transmitted, stored or logged, and the tool keeps working if you disconnect from the internet after the page loads.