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 for recruitments like RRB NTPC, RRB ALP (Assistant Loco Pilot), Group D, and Je exams. 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. If you are applying for other major central exams, you can also use our UPSC photo resizer, SSC image compressor, or the Photo and Signature Joiner to combine your documents.
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 |