RRB Group D Photo and Signature Size 2026: KB, Pixels, Format
For RRB Group D (Level 1) under CEN 09/2025, the photo is captured live during the application, so there is no photo file to upload. The signature is uploaded as a JPG or JPEG between 30KB and 49KB, at least 140x60 pixels, scanned at 100 DPI or more. SC/ST candidates wanting a free travel pass add a certificate PDF under 400KB.
FixDoks is an independent website and is not affiliated with any government body, exam board or recruitment agency. Requirements change, so always confirm them in the latest official notification.
For RRB Group D under CEN 09/2025 (Level 1 posts), you do not upload a photo at all: the application captures it live through your webcam or phone front camera. The only image you upload is your signature, as a JPG or JPEG between 30KB and 49KB, at least 140x60 pixels, scanned at a minimum of 100 DPI.
This is a real change from the previous Group D cycle. CEN 08/2024 asked for an uploaded studio photo of 50KB to 100KB, so settings copied from a friend who applied in 2025 will be wrong for the current notice.
| Document | Format | File size (KB) | Dimensions | Other rules |
|---|---|---|---|---|
| Photograph | Live capture | No upload | Taken by webcam or phone front camera | Non-white, preferably dark clothes; camera at eye level; no cap, mask or glasses |
| Signature | JPG/JPEG only | 30KB to 49KB | At least 140x60px, scanned at 100 DPI or more | Black ink on white paper, running handwriting, centred in a 35x20mm box |
| SC/ST certificate (only for a free rail travel pass) | PDF only | Under 400KB | Not specified | Latest valid certificate as on the closing date |
Source: RRB CEN 09/2025 (Recruitment for Various Posts in Level 1 of 7th CPC Pay Matrix), paras 16.4 and 16.5, pages 31 to 33, read on 26 September 2026. Corrigenda 1 to 4 changed vacancies and dates, not the upload rules.
Get your signature into the 30KB to 49KB range with the RRB signature resizer. It whitens the paper, can turn blue ink black, and centres the signature in a 35x20mm frame.
RRB NTPC & Group D Signature Resize
Same settings as the full tool page.
Runs in your browser. Your file never leaves your device. Open the full RRB NTPC & Group D Signature Resize page
CEN 09/2025 key dates
RRB published CEN 09/2025 on 31.01.2026 with 22,195 Level 1 vacancies in the original notice (later corrigenda revised the zone-wise tables). Corrigendum 4, dated 02.03.2026, extended the deadlines:
- Online applications: 31.01.2026 to 09.03.2026 (23:59).
- Last date for fee payment: 11.03.2026.
- Paid modification window: 12.03.2026 to 21.03.2026.
- Scribe details for eligible PwBD candidates: 22.03.2026 to 26.03.2026.
The application window is closed. Exam dates are announced on the regional RRB websites. If you are reading this for a newer Level 1 notice, check its own upload paragraph first, because the 2024 and 2025 notices already differed.
Watch out: the FAQ says something different
RRB also published a FAQ document for CEN 09/2025. Its answer to "What should be size of the documents to be uploaded?" gives a photo of 40KB to 70KB, a signature of 30KB to 70KB and a caste certificate under 500KB. Those figures do not match the notice itself, which says no photo is uploaded, the signature must be 30KB to 49KB and the certificate must be under 400KB.
When the two disagree, follow the notice, because the notice is the binding document and the stricter limits satisfy both. A signature of about 40KB and a certificate PDF under 400KB will pass either reading. The FAQ also notes that the exact dimensions are shown on the upload page itself, so read the on-screen hint before you pick a file.
What changed from CEN 08/2024
The previous Group D notice, CEN 08/2024, asked for uploads that many websites still quote:
- Photo: colour passport photo from a studio, 50KB to 100KB, 35x45mm or 320x240 pixels, JPEG at 100 DPI or more, not older than two months. Mobile selfies could lead to rejection.
- Signature: JPEG, 30KB to 50KB, 50x20mm or 140x60 pixels (preferred), black ink, running letters.
- SC/ST certificate: PDF up to 500KB.
Under CEN 09/2025 the studio photo is gone, the signature ceiling dropped from 50KB to 49KB, the box is now 35x20mm, and the certificate limit fell to 400KB. If a guide mentions a 50KB to 100KB photo for Group D, it is describing the 2024 notice.
How to make the signature file on your phone
- Sign on plain white paper with a black ball pen, in your normal joined handwriting.
- Photograph it in daylight from straight above, with no shadow and no table surface in the frame.
- Convert the photo to JPG if your phone saved it as HEIC, using HEIC to JPG.
- Open the RRB signature resizer, upload the image and let it crop to the ink and clean the background.
- Choose black ink if the signature looks blue or grey, then download the JPG.
- Confirm the file size reads between 30KB and 49KB before you upload it.
If the background still looks grey, the guide to removing a signature background shows how to fix it. For a full no-scanner walkthrough, see how to scan a signature on your phone.
Live photo: what CEN 09/2025 asks for
Paragraph 16.4 says candidates are not required to upload a pre-existing photograph. When the form prompts you, sit or stand in front of the camera and follow these rules:
- Wear non-white clothing, preferably dark, to contrast with the background.
- Keep the camera at eye level, look straight ahead, and keep your whole face inside the frame on screen.
- Do not wear a cap, mask, or glasses or spectacles.
- Preview the photo and retake it if needed; you can do this until you submit.
Do not take a picture of a printed or on-screen photo. CEN 09/2025 says any application with such an image will be summarily rejected, and your appearance at every stage must match the captured photo.
Lighting and framing tips from the SSC live photo guide work the same way on the RRB portal.
Common mistakes on RRB Group D forms
- Preparing a 50KB to 100KB studio photo from the 2024 rules, when CEN 09/2025 captures the photo live.
- Uploading a signature under 30KB. A small, clean file still fails the minimum.
- Uploading a 50KB signature because the 2024 notice allowed it. The current ceiling is 49KB.
- Signing in capital or block letters, or in blue ink.
- Uploading a thumb impression instead of a signature. Only certain PwBD candidates who cannot sign may upload a finger or thumb print, in the order the notice sets.
- A caste certificate PDF over 400KB. Compress it to about 200KB to stay safely under.
Also applying for NTPC? The RRB NTPC upload guide covers CEN 06/2025 and 07/2025, which use the same signature rule.
Tools for this
Frequently asked questions
Is a photo upload needed for RRB Group D 2026?
No. Under CEN 09/2025, your photograph is captured live during the application through a webcam or the phone's front camera. You upload only your signature and, if you want a free travel pass as an SC/ST candidate, your caste certificate.
What is the RRB Group D signature size?
CEN 09/2025 asks for a JPG or JPEG between 30KB and 49KB, at least 140x60 pixels, scanned at 100 DPI or more, in black ink on white paper. The signature should sit centred in a 35mm by 20mm box on the form.
Why do some sites say 50KB to 100KB for the Group D photo?
That was the rule in the previous notice, CEN 08/2024, which asked for an uploaded studio photo of 50KB to 100KB at 35x45mm or 320x240 pixels. The current notice, CEN 09/2025, replaced the upload with live photo capture.
The Group D FAQ says the signature can be up to 70KB. Which is right?
The FAQ published with CEN 09/2025 says 30KB to 70KB, but the notice itself says 30KB to 49KB. Follow the notice. A file of about 40KB meets both, so you avoid the problem entirely.
Can I use the same signature file for RRB NTPC and Group D?
Yes, if it meets the current rule. CEN 06/2025, CEN 07/2025 and CEN 09/2025 all ask for a JPG between 30KB and 49KB, at least 140x60 pixels. Check any newer notice before you reuse the file.
Sources
- RRB CEN 09/2025 (Level 1), detailed notice, paras 16.4-16.5, pages 31-33 (RRB notice board: CEN 09/2025 > Notification) (checked 2026-09)
- RRB CEN 09/2025 Corrigendum 4 (02.03.2026, revised dates) and FAQ (Q.29, Q.51) (checked 2026-09)
- RRB CEN 08/2024 (Level 1), detailed notice, pages 26-27 (previous cycle) (checked 2026-09)
- Railway Recruitment Boards application portal (checked 2026-09)
Rules and limits change. Always check the latest official notification or portal before you submit a form.