Railway RRB Photo & Signature Resizer (NTPC, Group D, ALP)
Resize photo (30–70 KB) and signature (15–40 KB) strictly compliant with Railway Recruitment Board CEN guidelines.
Recruitment agencies periodically update their upload specifications. Please verify the rules from the active portal link below before final submission.
Railway RRB Photo & Signature Resizer (NTPC, Group D, ALP)
Resize photo (30–70 KB) and signature (15–40 KB) strictly compliant with Railway Recruitment Board CEN guidelines.
1. Photograph
Target: 30 KB to 70 KB2. Scanned Signature
Target: 15 KB to 40 KBAll files are processed locally in your browser sandbox. No images are sent to any remote server.
Railway RRB Photo & Signature Guidelines Overview
Railway Recruitment Boards (RRB) applications for NTPC, Group D, Assistant Loco Pilot (ALP), Technician, and Junior Engineer (JE) on rrbapply.gov.in have distinct file size thresholds compared to other exams. RRB requires photos between 30 KB and 70 KB and signatures between 15 KB and 40 KB.
Official Specifications Table
| Item | Dimensions | File Size | Format | Key Guidelines |
|---|---|---|---|---|
| RRB Candidate Photograph | 35 mm × 45 mm (~320 × 240 px or 350 × 450 px) | 30 KB – 70 KB | jpg | Recent color photograph on a clear white background. Caps, tinted glasses, or unauthorized headwear are not permitted. |
| RRB Scanned Signature | 50 mm × 20 mm (~140 × 60 px) | 15 KB – 40 KB | jpg | Sign on plain white paper using a black ballpoint pen in running handwriting. Block letters are rejected. |
Official Notice Highlights
- Photo size: Must be strictly between 30 KB and 70 KB.
- Signature size: Must be strictly between 15 KB and 40 KB.
- Photo background: Must be plain white without shadows.
- Signature ink: Must be black ballpoint pen in cursive handwriting.
Common Mistakes to Avoid
Avoid these frequent errors that can lead to application form rejection:
❌ 1.Photo file size under 30 KB
While other exams accept 20 KB, RRB strictly enforces a 30 KB minimum.
❌ 2.Signature file size under 15 KB
Signatures below 15 KB fail RRB upload validation.
❌ 3.Signing with blue ink
RRB requires signatures in black ink only.
RRB Centralized Employment Notice (rrbapply.gov.in)
Last verified: 2026-10-05 • Confirm active guidelines on the official portal.
Frequently Asked Questions
What is the photo size and KB range for Railway RRB exams?
Railway RRB requires photo files between 30 KB and 70 KB in JPG/JPEG format.
What is the required signature size for RRB?
Signatures must be between 15 KB and 40 KB signed with a black ballpoint pen.