RRB ALP: photo and signature guide

The official FAQ for CEN 01/2025 (ALP), question 48, sets the photo at JPEG 100-150 KB in a 35 x 45 mm ratio and the signature at JPEG 30-49 KB.

Official size and format

PhotographJPEG, 100-150 KB, 35 x 45 mm ratio (portrait passport proportion), per FAQ question 48.

SignatureJPEG, 30-49 KB, signed on white paper in dark ink.

CertificatesThe FAQ covers caste certificates for the free travel pass; keep scans clear and within the limit shown on the upload page.

How to prepare the files with PDF Saathi Hub

Take a fresh passport style photo in good light with a plain background.
Crop it to the 35 x 45 portrait ratio in the Photo Editor (the 350 x 450 pixel preset ratio is a reference, not an official pixel order).
In Photo / Sign KB, use the RRB ALP photo preset (100-150 KB) and the RRB ALP sign preset (30-49 KB).
Check the downloaded files, then upload them through the official application link of your RRB.

The millimetre ratio is about proportion, not a fixed pixel size: pixel dimensions depend on scan DPI. A future ALP or technician notice can change these KB ranges.

Note for this cycle

ALP is one of several railway recruitments running in different years (NTPC, Group D, ALP, technician). Match the CEN number of your notice before using any KB range, because each recruitment sets its own.

Official sources

These rules change between recruitment years and notices. The current official notice and the upload screen of your form are the final word; this guide is only a helper, not an official recruitment page.

Frequently asked questions

What photo size does RRB ALP need?

JPEG between 100 KB and 150 KB in the 35 x 45 mm portrait ratio, per CEN 01/2025 FAQ question 48.

What signature size does RRB ALP need?

JPEG between 30 KB and 49 KB for the same recruitment.

Is 350 x 450 pixels an official requirement?

No. It is only a convenient reference matching the 35 x 45 mm ratio. The notice gives the ratio and KB range; the upload page shows what it expects.