How to use RRB Railway Signature
- Upload your image — JPG, PNG or WEBP, any size.
- Tap Format image — it centre-crops to the exact official size.
- Check the result size: it must be inside the official KB range.
- Download the formatted JPG and upload it to the form.
Frequently asked questions
Is my image uploaded to a server?
No. Formatting runs in your browser. Your image never leaves your device.
Official requirements
- ✓ Format: JPEG/JPG only
- ✓ File size: 30 to 49 KB
- ✓ Minimum dimension: 140 px (W) × 60 px (H)
- ✓ Scan resolution: minimum 100 DPI
- ✓ Signature must be written by candidate only
- ✓ Use black ink pen on white paper
- ✓ Signature must be in running handwriting (cursive/joined)
- ✓ NOT in BLOCK, CAPITAL, or DISJOINTED letters
- ✓ Must be clear, legible, and entirely visible