| Upload | Size | File size | Format |
|---|---|---|---|
| Photograph | 3.5 × 4.5 cm (276 × 354 px) | 20–100 KB | JPG / JPEG |
| Signature | 350 × 150 px | 30–49 KB | JPG / JPEG |
These sizes are from the latest official notice or bulletin we could find (checked October 2026). Rules can change between years, so match them with the notification on rrbapply.gov.in before you submit. You can change every value in the tool.
Tips so your form is not rejected
- Use a recent colour photo with a plain light background. The face should be clear, with no cap or dark glasses.
- Sign with a black pen on plain white paper and take the picture in daylight. Do not sign in capital letters.
- Upload the photo in the photo box and the signature in the signature box. Swapped files are a common reason for rejection.
- Keep the same signature you will use at the exam centre.
Frequently asked questions
What is the photo size for Railway RRB?
The photo should be 3.5 × 4.5 cm (276 × 354 px), 20–100 KB, JPG. Tap "Resize photo for Railway RRB" above to get it in one go.
What is the signature size for Railway RRB?
The signature should be 350 × 150 px, 30–49 KB, JPG. Tap "Resize signature for Railway RRB" above.
Can I resize the photo on my phone?
Yes. The tool works in your phone browser, and your photo never leaves your phone.