Compress a photo down to a target file size in KB.
Government forms, job portals, and exam applications routinely cap photo uploads at a specific file size - 50KB, 100KB, 200KB - a limit that a modern phone photo (often 3-8MB) blows past by a factor of 30 or more. Standard compression tools let you pick a quality percentage and hope it lands under the limit; this tool works backwards from the KB target you actually need.
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Try Free Resume Builder Try Free Invoice BuilderMost compression tools ask you to choose a quality level (say, 60% or 80%) and you find out the resulting file size only after the fact - if it's still too big, you go back and try a lower percentage, guessing again. Working from a target KB size instead means the tool does that trial-and-error internally and hands you a file that fits the requirement on the first attempt, which matters most when a portal gives you a hard cutoff with no tolerance above it.
JPEG compression reduces file size by discarding some visual detail in a way that's designed to be as imperceptible as possible at moderate compression levels - fine texture and subtle color gradients are the first to go, while sharp edges and overall shape stay intact even at fairly aggressive compression. Getting close to a small target like 50KB usually means some visible softening, but the photo remains clearly identifiable and suitable for the identity-verification purpose these size limits exist for.
Some quality reduction is unavoidable at aggressive targets like 50KB, but the tool prioritizes keeping the photo clearly usable over hitting the exact number - it won't degrade the image further than necessary to meet your target.
Yes, though at very small targets like 20KB you'll see more visible compression artifacts, especially in busy backgrounds - a plain, evenly-lit background photo compresses more cleanly at small sizes than a busy or textured one.
No - only JPEG quality/compression is adjusted. If you also need specific pixel dimensions (like a passport photo size), use a dedicated resize tool first, then compress the result here.