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Quick tool
Use the same validated processing workflow with this target already selected.
Runs in your browser — the file never leaves your device
Drop an image here
or tap to choose JPG, PNG or WebP up to 25 MB
Choose imageYour before and after preview will appear here
Standard processing stays in this browser.
Report a rejected file20 KB is the size limit a lot of application forms put on a scanned signature, and some put it on the passport photo too. This page starts the compressor with a 20 KB maximum already selected. You upload once, check the preview, and download a file that fits — no account, no watermark, and no quality cap on the free output.
A quality slider gives you a guess: the same setting produces very different file sizes on different images. Targeting 20 KB works the other way round — the tool adjusts quality until the encoded file actually lands under 20 KB, so you get the sharpest version that still respects the limit.
You can, but a strict 20 KB maximum may land you just under the lower bound of that range. For a range, open the exact-KB compressor and set a target range instead, so the result sits comfortably inside the limits the form accepts.
No. Compression only changes how much data is used to store the picture, not how many pixels wide and tall it is. If the form also states pixel dimensions, use the photo resizer for those and compress afterwards.
Need a different limit? These pages open the same tools with another target already set.
If your form asks for a size or a range that is not listed here, open the full tool and type the numbers yourself.