Railways
RRB Group D
RRB Group D
photo & signature resizer
Photograph JPEG, 50–100 KB, 35 mm × 45 mm or 320 × 240 px. Signature JPEG, 30–50 KB, 50 mm × 20 mm or 140 × 60 px preferred. Minimum 100 DPI. Everything happens on your device.
✓Checked against the official notification, page 25Details ↓Already have a rejected file? Check the original file for RRB Group D.
Published sizes disagreed. We checked the notification.Resolved against CEN 08/2024, section 16.0. The photograph is on page 25: JPEG, 50 to 100 KB, 35 mm × 45 mm or 320 × 240 pixels, minimum 100 DPI. The signature continues on page 26: JPEG, 30 to 50 KB, 50 mm × 20 mm or 140 × 60 pixels (preferred), minimum 100 DPI, running handwriting in black ink. A photograph of 20–50 KB is under the real floor. 240 × 240 px is not in this CEN. This file is written at 200 DPI, which is above the 100 DPI minimum.
✓
Checked against the official notification on 2026-10-01, page 25.
Open the notification →
- Photograph JPEG, 50–100 KB, plain white or light background, 35 mm × 45 mm or 320 × 240 px, minimum 100 DPI. This file is written at 200 DPI, above that floor. Not older than two months. A studio photograph; mobile selfies may be rejected.
- Signature JPEG, running handwriting, not block capitals, black ink on white paper, 30–50 KB, minimum 100 DPI, 50 mm × 20 mm or 140 × 60 px (preferred). The signature specification is on page 26 of the same CEN.
Why RRB Group D forms get rejected
- Photograph JPEG, plain white or light background, 50–100 KB, 35 mm × 45 mm or 320 × 240 px, minimum 100 DPI. Not older than two months. A studio photograph — mobile selfies may be rejected. Face at least half the frame, no dark glasses or cap.
- Signature in running handwriting, not block capitals, black ink on white paper, 30–50 KB, 50 mm × 20 mm or 140 × 60 px preferred, minimum 100 DPI.
Sizes for RRB Group D
| Upload | Dimensions | File size | Format |
|---|---|---|---|
| Photograph | 320 × 240 px | 50–100 KB | JPEG |
| Signature | 140 × 60 px | 30–50 KB | JPEG |
Same numbers on other exams: 50–100 KB · 140×60 px
Set by Railway Recruitment Board. Open the official site →
How it works
Exam-ready photo and signature in three steps. No editing skills, no software, no upload.
1
Pick your exam
Choose from 129 presets. 35 have been checked against the official notification; every other page says it has not. Pixels, KB band and DPI load with the preset. Not listed? Type your own numbers.
2
Upload and adjust
Drag to position your face, pinch or scroll to zoom. Signatures get one-slider background clean-up. Add your name and the date if the board wants them printed on the photo.
3
Check and download
You get exact dimensions, a file inside the KB band, correct DPI — and a pre-flight report on blur, background and face position before you upload anything.
Guides
We read the notifications. The exam photo size charts disagree.
The exams where published photo and signature specs contradict each other, what the official notifications actually say, and why neither SSC nor NTA publishes the pixel dimensions everyone quotes.
13 min read
How to find the photo specification in a notification PDF
Every size chart online contradicts every other one. The authority is the notification. Here is how to find the upload rules inside it.
3 min read
How to resize an image to an exact KB size
The method portals require — hitting a file-size band exactly, at fixed pixel dimensions, without wrecking the picture.
3 min read
Questions
What photo size is required for RRB Group D?
CEN 08/2024 states the photograph as JPEG, 50–100 KB, 35 mm × 45 mm or 320 × 240 pixels, minimum 100 DPI. The signature is JPEG, 30–50 KB, 50 mm × 20 mm or 140 × 60 pixels (preferred), minimum 100 DPI, in running handwriting. A photograph of 20–50 KB is under the real floor. The photograph clause is on page 25; the signature clause continues on page 26.
My file is smaller than 50 KB. Will it be rejected?
Yes. 50 KB is a floor, not a suggestion, and portals reject files under it exactly as they reject oversized ones. This tool lifts an undersized file over the floor by appending blank JPEG comment data, which decoders ignore. The picture itself is untouched — some tools inject random noise into the image instead, which visibly degrades it.
Are my photos uploaded anywhere?
No. The resizing runs inside your browser using the standard canvas API. Nothing is sent to a server, there is no account, and the page keeps working offline once loaded.
Can I set the DPI?
Yes, and it defaults to 200 DPI here. Browsers write 96 DPI into canvas JPEGs, and some portals read that field and reject the file even when the pixel dimensions are correct. The value is written into the JFIF header of the file you download.
Why do other sites list a different size for RRB Group D?
Resolved against CEN 08/2024, section 16.0. The photograph is on page 25: JPEG, 50 to 100 KB, 35 mm × 45 mm or 320 × 240 pixels, minimum 100 DPI. The signature continues on page 26: JPEG, 30 to 50 KB, 50 mm × 20 mm or 140 × 60 pixels (preferred), minimum 100 DPI, running handwriting in black ink. A photograph of 20–50 KB is under the real floor. 240 × 240 px is not in this CEN. This file is written at 200 DPI, which is above the 100 DPI minimum. We would rather show you the disagreement than pick one and sound certain.