Compress Image to Exact KB
Original
Compressed
Hitting an exact size limit
Application portals reject a photo that is even a kilobyte over, which is why "make it smaller" is not enough — you need it under a specific number. This tool searches for the best quality that still fits your target, and if the target cannot be reached by quality alone it reduces the pixel size and tries again.
Common limits on Indian forms
- Photo — usually 20KB to 50KB, sometimes up to 100KB.
- Signature — usually 10KB to 20KB.
- Documents and certificates — often 200KB to 500KB.
Always check the notification for your own exam, because the limits differ and some also fix the pixel dimensions.
Getting a better-looking result
- Crop tight to the face first — fewer pixels means less to compress away.
- Set a width limit as well as a size target; a 600px-wide photo at 50KB beats a 3000px one.
- Keep JPG for photographs. PNG cannot compress a face anywhere near as far.
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Free to use, no sign-up, works on any phone.
Frequently Asked Questions
Those portals store lakhs of photos and cap each upload to keep storage and page loads manageable. SSC, UPSC, railway and most state boards publish an exact limit, and the form refuses anything larger.
The tool searches for the highest quality that still fits, and if quality alone cannot get there it reduces the pixel size and searches again. If the target is impossible it says so plainly rather than handing you an oversized file that the form will reject.
A passport-style headshot survives 20KB reasonably well because it is small and mostly one face. A detailed landscape at 20KB will look blocky. Shrinking the pixel size first usually looks better than forcing quality down alone.
No. Compression happens in your browser using canvas, so the photo never leaves your device. That matters here because these are usually identity photos going onto a government form.
JPG for photographs — it is what almost every form expects and it compresses faces well. Only use PNG if the form specifically asks for it, since PNG cannot be squeezed nearly as far.
Yes, and it is easier than a photo — a signature is mostly white, so it reaches a small size with little visible loss. Many forms ask for a signature under 20KB alongside a photo under 50KB.