Railway exam portals (RRB NTPC, RRB Group D) and many state government portals cap photos at 20–40 KB. Whether you need to compress jpg to 20kb for a railway exam, reduce an image to 20kb for RRB NTPC, or resize a photo to 20kb online free — here is how to do it instantly in your browser.
RRB NTPC, RRB Group D, RRB JE, and most Railway Recruitment Board portals cap photos at 20–40 KB. Some TNPSC, BPSC, and state PSC portals also use 20 KB limits. Always check the official notification for the exact range.
At 20 KB, a 200×200 px or 150×200 px JPEG retains enough detail for identity verification. The face is recognisable. You would not print a 20 KB photo, but for a digital government portal upload it is perfectly sufficient.
Yes. 5 MB = 5,120 KB. Compressing to 20 KB is a 99.6% reduction in file size. PhotoFit does this automatically by reducing JPEG quality until the target size is reached. The pixel dimensions remain unchanged.
Aim for 35–38 KB when the range is 20–40 KB. This gives you buffer room above the 20 KB minimum and stays safely under the 40 KB maximum. A file at exactly 20 KB or 40 KB risks failing edge-case portal checks.
Three other common reasons beyond file size: (1) Wrong format — most portals require JPEG, not PNG or HEIC. (2) Wrong dimensions — check the pixel requirements. (3) Wrong background — railway portals typically require a white or light background. Fix all three and then check file size.