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RRB NTPC and Group D: photo and signature size.

RRB NTPC and Group D asks for signature 30–49 KB, 3.5×2 cm, 200 DPI (preset; the notice says at least 100) and SC/ST certificate (free travel pass) as a PDF up to 400 KB. The photo is taken live in the form, not uploaded. This tool makes each file to that spec in your browser and checks it before you download; nothing is uploaded.

Updated 3 October 2026

RRB NTPC and Group D: Signature

30–49 KB, 3.5×2 cm, 200 DPI (preset; the notice says at least 100)

  • Black ink on white paper, in running handwriting. At least 140×60 pixels and 100 DPI.
  • As of 3 October 2026, RRB had not published the detailed NTPC 2026 notice; these are the rules of the latest NTPC and Group D notices. Check the new one when it appears.

From RRB CEN 09/2025 (Group D), pp. 31–33 and RRB CEN 06/2025 (NTPC), p. 22, checked 28 September 2026. Check the latest notice before you submit.

Runs in your browser. Your files are never uploaded.

Your file appears here, checked against the spec.

Several files, or a whole form? Tell Sochen “Get my RRB NTPC and Group D signature and sc/st certificate (free travel pass) ready” and it does every step, checks each against the notification, and still keeps your files on your device.

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What RRB NTPC and Group D asks for

UploadSize and dimensionsRules
PhotoTaken live in the formNot uploaded: the form takes it live. Wear dark, non-white clothes; no cap, mask or spectacles.
Signature30–49 KB, 3.5×2 cm, 200 DPI (preset; the notice says at least 100)Black ink on white paper, in running handwriting. At least 140×60 pixels and 100 DPI.
SC/ST certificate (free travel pass)up to 400 KB (PDF)PDF only, under 400 KB, legible. Only for SC/ST candidates who want the free rail travel pass.

As of 3 October 2026, RRB had not published the detailed NTPC 2026 notice; these are the rules of the latest NTPC and Group D notices. Check the new one when it appears.

From RRB CEN 09/2025 (Group D), pp. 31–33 and RRB CEN 06/2025 (NTPC), p. 22, checked 28 September 2026. Notices change between years, so check the latest one before you submit.

When to apply

As reported by exam news sites on 3 October 2026 from RRB's short notices of 21 September: NTPC Graduate (CEN 06/2026) applications 8 October to 6 November 2026, and NTPC Undergraduate (CEN 07/2026) 15 October to 13 November 2026, with the detailed notices expected on 7 and 14 October. The upload rules on this page are from the 2025 notices until the detailed CEN is out; confirm the dates and rules on rrbapply.gov.in before you apply.

How to make the RRB NTPC and Group D files

  1. Pick the upload at the top of the tool: photo, signature. The size, pixels and DPI from the notice are filled in for you.
  2. Drop in your image. For a photo, a recent one taken facing the camera against a plain wall in even light. For a signature, sign in black ink on white paper and photograph it flat; the tool trims to the ink and whitens the paper.
  3. Make it, check the ticks, download. Each tick is one part of the spec (KB band, pixels, DPI) measured on the finished file. The file is named for the form and the upload, so you can tell them apart when you upload.

Worth knowing for RRB NTPC and Group D

  • Write the signature in running hand (joined letters), not capitals or separate letters: block letters are a stated ground for rejection.
  • The signature you upload is matched at the exam, at document verification, at the medical and at appointment, so use the one you always use.
  • Wear dark, non-white clothes for the live photo so you stand out from the white background; no cap, mask or spectacles.

The PDFs

The sc/st certificate (free travel pass) goes in as a PDF up to 400 KB: the compress-PDF tool's “Under 500 KB” setting gets a scan there with the size checked. Photos of a certificate rather than a PDF? The images-to-PDF tool makes one PDF under the same limit.

Questions

Do I upload a photo for RRB NTPC and Group D?+

No. Not uploaded: the form takes it live. Wear dark, non-white clothes; no cap, mask or spectacles.

What size should the RRB NTPC and Group D signature be?+

30–49 KB, 3.5×2 cm, 200 DPI (preset; the notice says at least 100). Black ink on white paper, in running handwriting. At least 140×60 pixels and 100 DPI.

How big can the RRB NTPC and Group D SC/ST certificate (free travel pass) PDF be?+

Up to 400 KB. PDF only, under 400 KB, legible. Only for SC/ST candidates who want the free rail travel pass. The PDF compressor's “Under 500 KB” setting gets a scan there, with the size checked.

What if my file is still over the limit?+

The tool keeps the pixels the form asks for and lowers the JPEG quality a step at a time until the file fits the band, then checks it; it tells you if quality had to drop below half. A plain, evenly lit background and a tight crop around the face shrink a photo the most.

Where do these numbers come from?+

From RRB CEN 09/2025 (Group D), pp. 31–33 and RRB CEN 06/2025 (NTPC), p. 22, read 28 September 2026. Notices change between years, so check the latest one before you submit.

Is my photo uploaded anywhere?+

No. The file is resized in your browser and stays on your device; nothing is sent to Sochen or anyone else.