Compress image to 20 KB

How to use the Compress Image to 20KB

1. Add the picture: JPG, PNG, HEIC, WebP, AVIF, BMP, TIFF and JPEG XL all work.
2. Check the target reads 20 KB, or type the exact number the portal states.
3. Choose JPG unless the site says it accepts WebP.
4. Compress, look at the result, then download it.

What the tool does to reach 20 KB

It encodes the picture at different qualities, halving the range each time, and keeps the best attempt that stays under the target. A small passport-style photo usually fits comfortably this way without visible damage.

A full phone photo with twelve million pixels or more has no chance of fitting at a sensible quality. When the lowest quality still overshoots, the picture is scaled down and the search repeats, and the progress note shows the new pixel size as it goes.

Getting a better-looking result

Every pixel you cut away before compressing leaves more of the 20 KB for the part that matters. Crop to the face or the signature first with the crop tool, and if the form names exact dimensions, set them with the resize tool before coming back here.

Signatures photographed in good light on plain white paper compress very well. Shadows and grey paper texture eat into the budget, so retake the picture if it looks murky.

Several documents in one go

Applications often want a photo, a signature and a scanned certificate, each under the same cap. Add all of them together; each gets its own quality search and its own final size in the list.

Save the results with the ZIP button or one at a time, and keep the originals, since a 20 KB copy is far too small to reuse for printing later.

Questions