compress image to 20kb
20 kb is the limit on some government and bank forms for a signature or thumbnail. we find the smallest-loss version that fits.
runs on your device · free · no sign-up
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how to compress image to 20kb
- drop one or many jpg, png or webp images on the box above.
- choose target file size (type a size in kb) or choose quality and drag the slider.
- optionally set a max width and an output format, then check the size shown next to each file.
- drag the before and after slider to check the look, then download one file or the whole zip.
at 20 kb you are dealing with a small picture: expect something like 300 × 400 pixels for a face or 400 × 150 for a signature. the tool will shrink the image for you when quality alone cannot reach the target. for the best look, crop away empty margins first so the pixels you keep are all useful.
solid backgrounds compress extremely well, plain colors and sharp lines do not. a photo with a busy background may end up soft at this size, while a signature scanned on white paper stays sharp. if the result looks poor, try a darker, higher-contrast scan of the signature.
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frequently asked questions
is 20 kb enough for a readable photo?
for a small id-style photo, yes. it will not be large, so do not use it for printing. for anything bigger than a thumbnail, aim for 50 or 100 kb.
why did my image get smaller in pixels too?
jpg quality alone cannot reach 20 kb for most photos. the tool lowers quality to 30 first, then reduces dimensions in small steps until the file fits, and tells you the percentage it used.
can i compress a png to 20 kb?
png quality cannot be reduced, so the tool converts it to jpg in this mode. logos and screenshots with few colors may look slightly different but stay readable.