Railway RRB Resizer
RRB ALP / NTPC / Group D 2026 Compliant • Sweet Spot Resolution • 100% Offline
Railway RRB Photo & Signature Image Resizer Online
Are you submitting a Railway Recruitment Board application online through the official RRB portal? One of the most common issues applicants face is uploading their passport photograph and scan of their signature. The Railway system has a strict validation protocol. Unless your photo is exactly 320 x 240 pixels (30-70KB) and signature is exactly 140 x 60 pixels (20-50KB), your upload will fail.
OptiKit's Railway Image Compressor solves this problem. It allows applicants to crop, resize, and compress their passport photos and signature scans completely in the browser without uploading any files to server-side queues, keeping your personal documents fully secure.
Railway RRB Official Compliance Table
| Asset | Exact Dimension | File Size Limits | Format |
|---|---|---|---|
| Photograph | 320 x 240 pixels (35x45 mm) | 30KB - 70 KB | JPEG / JPG only |
| Signature Scan | 140 x 60 pixels | 20KB - 50 KB | JPEG / JPG only |
Railway RRB Image Compressor FAQs
For Indian Railways RRB (Railway Recruitment Board) ALP, Group D, and NTPC examinations: (1) Passport Photo (35mm x 45mm, 320x240 pixels, size strictly between 30KB and 70KB), (2) Signature Scan (140x60 pixels, size strictly between 20KB and 50KB), in JPEG format.
Typical rejections happen due to: (1) File size below 30KB or above 70KB, (2) Red eyes, reflections, or shadow on face, (3) Not having a plain white/light background, (4) File name containing special characters.
Yes. OptiKit processes all document image files entirely locally inside your browser RAM. No files are transmitted to any servers, guaranteeing absolute confidentiality.
RRB guidelines mandate signing with a thick black ink pen inside a box on plain white paper. Blue ink is not recommended as scanner verification requires high contrast.