Compress Image to 20KB Online Free

You've filled in every field, attached your photograph, and hit submit — only for the form to throw it straight back with the same complaint: the file must be under 20KB. Anyone who has applied for an SSC, IBPS, railway or state PSC exam knows that sinking feeling. Twenty kilobytes is the tightest upload ceiling most people ever run into, and PixelResize exists to clear it. Drop your photo into the box above and it keeps easing the compression down until the file slips beneath 20KB, then shows you the exact number so submission holds no surprises.

Here is the part the quality slider won't admit: you cannot keep a big photo and force it to 20KB at once. The two goals are at war. A 12-megapixel phone shot simply carries too many pixels to fit in twenty kilobytes, so something has to give — and if you don't shrink the dimensions, what gives is sharpness. The smarter move is to scale the photo down to the size the portal actually asks for, often somewhere around 200 by 230 pixels, before compressing. With fewer pixels to describe, 20KB suddenly has room to breathe.

Most exam sites want two files, each capped on its own: a recent photograph and a scanned signature. The signature is the easy half. It's mostly blank paper crossed by a few thin strokes, so it squashes down well under the usual 10–20KB signature limit without any fuss — just crop tight to the ink and keep it as a wide strip. The photograph takes more care, which is precisely why cropping close to your face and matching the required pixel size beforehand pays off.

And because these particular files carry your identity, it's worth asking where the work actually happens. With PixelResize the answer is simple: right here, on your own machine. Your face and signature are never shipped to a server, never logged, and gone from memory the second you leave the page — the kind of assurance you want when the file in question is, literally, you.

So the recipe for 20KB is short: start from a clear, well-lit original, crop so the head or signature fills the frame, resize to the portal's stated pixels, then compress. If it still looks soft, drop the dimensions a touch more rather than wrestling the quality down further — at this extreme, fewer pixels always beats heavier compression. It's free, there's no watermark, no sign-up, and no limit on attempts, which matters because these portals are fussy and you'll often need two or three goes before one sticks.