Guides·ResizePing

RRB Photo and Signature Size in KB: Resize on Android or iPhone

Need your RRB photo and signature at the right KB? Type the limit into ResizePing's Target size, check the projected size and save, all on your phone.

Published October 26, 2026 · Last updated October 28, 2026

The RRB photo size in KB and the signature size differ between railway notices. A recent ALP notice lists the photo at 100–150 KB and the signature at 30–49 KB, while an older NTPC notice lists 30–70 KB for both. To get there, open the picture in ResizePing, set Mode to Target size and type the KB limit.

Photo or signature rejected? ResizePing resizes pictures to a size in KB on your phone. Get it on Google Play or the App Store.

RRB limits

Limits change per notice, check yours.

Tip: type your form's KB into Target size in ResizePing and the file is sized for you.

FileAs listed in recent notices
Photo100–150 KB, 35 × 45 mm (recent ALP notice); 30–70 KB (older NTPC notice)
Signature30–49 KB (recent ALP notice); 30–70 KB, 140 × 60 pixels preferred (older NTPC notice)

Steps

  1. Take the photo and signature limits from your form or notice.
  2. Open ResizePing and pick the picture.
  3. Set Mode to Target size.
  4. In Target (KB), type the limit, slightly below the maximum.
  5. Read the Projected size, tap Run and check the saved size.
  6. Repeat for the other file with its own limit. Crop the white margins off a signature photo first.

If the size can't be reached, ResizePing says "Can't get this under N KB. Try a larger size or lower resolution." Make the picture smaller with Dimensions or Percent, run it, then set Target size again.

What to know

  • ResizePing works on photos. It has no signature or ID mode, and it does not change backgrounds.
  • Never uploaded to our servers.
  • The saved file can land a little above the number you type, so type a slightly lower target when the limit is hard.

FAQ

  • What is the RRB photo size in KB? It depends on the notice: a recent ALP notice lists 100–150 KB and an older NTPC notice lists 30–70 KB. Use the numbers in your own CEN.
  • How do I resize a signature to the right KB? Crop the margins, set Target size, type a KB value inside the range your notice gives, run it and check the saved size.
  • Does it upload my photo? No. Never uploaded to our servers.

More sizes: Resize photo and signature for SSC, NEET, UPSC and PAN forms and Resize Image in KB on Android or iPhone (10 KB to 2 MB).

Other exam forms