Bihar Police photo & signature size
Prepare both files to the Bihar Police specification — correct pixel size, inside the KB range, ready to upload.
The specification
| Photograph | Signature | |
|---|---|---|
| Dimensions | 200 × 230 px (3.5 × 4.5 cm) | 140 × 60 px |
| File size | 20–50 KB | 10–20 KB |
| Format | JPG / JPEG | JPG / JPEG |
| Background | Plain white | Plain white paper |
| Ink | — | Black, handwritten |
The Central Selection Board of Constables handles Bihar Police recruitment. Its portal is stricter than most about background: an off-white or cream wall is frequently rejected where a true white one passes.
Specific to Bihar Police. Shoot against genuinely white paper or wall, not cream. Use the editor's white balance if the wall reads warm.
A note on the 10 KB signature minimum. At 140 × 60 pixels a signature is only 8,400 pixels. Measured against a real scan, JPEG tops out around 2.8 KB at maximum quality — reaching 10 KB would require the image to be closer to random noise than to handwriting. The two published figures cannot both be met. Prepare the file to the correct 140 × 60 pixel size, which is what the portal validates, and do not degrade the signature chasing the byte count.
Always check your own notification. CSBC revises these between cycles and the figures published on third-party sites go stale. The tool above accepts whatever the current rule is — and if your notification differs, the exact KB tool and resizer will hit any target you type in.
Before you upload
Prepare the photograph against a plain white wall in even daylight, taken by someone else from about 1.5 metres — not a selfie. Sign on blank unlined paper with a medium ballpoint and photograph the sheet straight down. Transfer the original file rather than sending it through WhatsApp, which re-compresses it.
The six mistakes that actually cause rejections, and how to fix each one, are covered in why exam photo uploads get rejected.
Questions
What is the Bihar Police photo size?
The commonly published requirement is 200 × 230 pixels in JPG format, between 20 KB and 50 KB, on a plain white background. Confirm against the notification you are applying under, as portals adjust this between cycles.
What is the Bihar Police signature size?
140 × 60 pixels in JPG format, between 10 KB and 20 KB. Sign in black ink on plain unlined white paper.
Anything specific to Bihar Police I should watch for?
Shoot against genuinely white paper or wall, not cream. Use the editor's white balance if the wall reads warm.
My photo is rejected even though the size looks right.
The three usual causes are a background that is not plain, a face that fills too little of the frame, and a file just outside the permitted range. Some portals also enforce a minimum size, so a file that is too small is rejected as well as one that is too large.
Can I use a phone photo?
Yes, if the background is plain and the lighting is even. Have someone else take it from about 1.5 metres — a selfie at arm's length distorts facial proportions and some portals detect it.
Does the signature have to be in black ink?
Most Indian portals require black ink on white paper, and several reject blue. Never use a typed or digitally drawn signature — that is grounds for rejection on its own.
Is my photo uploaded anywhere?
No. Everything is prepared inside your browser and never transmitted. That matters for documents attached to an identity.