RRB Photo & Signature Size
Direct answer: For RRB CEN 06/2026 you do not upload a photograph: §14.4 of the Centralised Employment Notice states candidates are not required to upload a pre-existing photograph, because the application module captures a live photograph while you apply. The file you do upload is your signature — JPG/JPEG only, between 30 KB and 49 KB, minimum 140 × 60 pixels, scanned at a minimum of 100 DPI (§14.5.1). The tool below is pre-loaded with that signature spec.
🔒 Your file is processed entirely in your browser. It is never uploaded to a server — there is no server.
The specification
| Document | Size window | Dimensions | Format | Official source | Checked |
|---|---|---|---|---|---|
| RRB — Photograph | Live capture — there is no photograph upload for this portal. No photo upload exists: the application module captures a live photograph while you apply. Source: Railway Recruitment Boards — CEN No. 06/2026, §14.4 (rrb.indianrailways.gov.in) · CEN No. 06/2026, 07.10.2026, §14.4 · checked 2026-11-08 | ||||
| RRB — Signature | 30–49 KB | Minimum 140 × 60 px, scanned at a minimum of 100 DPI, in a 35 mm × 20 mm scan box, signature centred. | JPG/JPEG only | Railway Recruitment Boards — CEN No. 06/2026, §14.5.1 (rrb.indianrailways.gov.in) · CEN No. 06/2026 (NTPC Graduate), 07.10.2026, §14.5.1 | 2026-11-08 |
Note the RRB signature window carefully: 30 to 49 KB — a minimum as well as a maximum, and a higher floor than other portals. A small, efficient scan will be rejected for being too light. If your signature file lands under 30 KB, this tool's window mode grows it honestly into the window instead of letting you fail.
The CEN's scanning box matters too: sign inside a 35 mm × 20 mm box on the paper, keep the signature centred, and scan at 100 DPI or above in JPG/JPEG — no other format is accepted for the signature.
For the live photograph: the module captures it while you fill the form (§14.4). Use a plain background, face the camera in even light, and do not hold up a printed photo — the entire point of live capture is that the photo is taken in the moment.
A sourcing note, in the open: these values are quoted from the official CEN 06/2026 text (§14.5.1), whose existence and details are confirmed by the official Press Information Bureau release. We re-verify portal values on every new notification cycle.
Resize to this spec
Questions
What is the RRB photo size in KB?
There is none in CEN 06/2026 — §14.4 states candidates are not required to upload a pre-existing photograph; the application captures a live photograph instead.
What is the RRB signature size?
JPG/JPEG only, between 30 KB and 49 KB, minimum 140 × 60 pixels, scanned at a minimum resolution of 100 DPI, signature centred in a 35 mm × 20 mm box (§14.5.1).
My signature file is only 18 KB. What do I do?
It will be rejected — the window starts at 30 KB. Use the tool above in window mode: it enlarges the file honestly (quality first, then dimensions, disclosed padding only as a last resort) into the 30–49 KB window.
Where did you get these values?
From the official Centralised Employment Notice (CEN) No. 06/2026, §14.4 and §14.5.1, checked on 2026-11-08.
Rejected anyway? Work through why portals reject files — the cause is usually the 1,000-vs-1,024 KB counting trap or dimensions, not the file size alone. See also all portal presets and how KBExact works.