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Railway NTPC · Signature

RRB NTPC signature size and resizer

Resize and compress your signature to the official spec. Drop the file below; it's checked against every rule before you download it.

rrbchennai.gov.in· verified 5 Jun 2026

Signature

Required

  • Format: JPG
  • Dimensions: 140 × 60 px
  • File size: 30–49 KB
  • DPI: ≥ 100 DPI
  • Background: White

Why signature uploads get rejected

  • The file is bigger than 49 KB. Phone photos are usually 2–5 MB, so they always need compressing.
  • The file is smaller than 30 KB. This happens with small, clean images; we raise the quality first and, if needed, add standard metadata to reach the minimum.
  • The image isn't 140 × 60 px. Cropping by hand often leaves it a few pixels off.
  • It's saved as the wrong format: the portal accepts JPG. iPhone HEIC photos and screenshots saved as PNG are common mistakes.
  • The background isn't plain white. A tool can't fix a coloured wall or a shadow; retake it against a white wall in good light.
  • The DPI is below 100. We set the DPI in the file for you.

FAQ

What is the RRB NTPC signature size?

The official requirement is: JPG · 140 × 60 px · 30–49 KB · ≥ 100 DPI · white background. Source: rrbchennai.gov.in, checked on 5 Jun 2026. Always confirm against the latest notification before you apply.

What if my signature is smaller than 30 KB?

We first raise the quality and resolution within the allowed limits. If it's still under 30 KB, we add standard metadata to the file to reach the minimum. The picture itself doesn't change, and the card tells you when this happened.

Is my signature uploaded anywhere when I resize it here?

No. The resizing and compression run in your browser, on your device. Your file is never uploaded to us or stored.

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