What is the RRB signature size?

At least 140 × 60 pixels at 100 DPI, 30 to 49 KB, JPG, black ink, running handwriting.

What is the RRB photo size?

There's no photo upload in 2026: the photo is captured live during the application.

My RRB signature is under 30 KB. What do I do?

Make it here: it is padded up to the minimum automatically, without changing how it looks.

Why does the portal still reject my file?

Check you picked the right exam, and that the file you upload is the one downloaded here, not a screenshot or a copy re-saved by another app. Notices change between cycles, so compare with the official link shown on the page.

Are my photo and signature uploaded?

No. They are cropped, cleaned and compressed in your browser, on your device. Location and camera details are removed from the saved files.

All tools / PDF / —

RRB photo and signature size: resize your signature

Railway recruitment (NTPC, Group D, ALP) captures your photo live, so you upload only the signature: at least 140 × 60 pixels, 30 to 49 KB, JPG.

First use downloads ~300 MB (LibreOffice engine). On a slow network this can take a few minutes.

After that, it's cached on your device. Subsequent conversions start in about 2 seconds and never upload your file.

Drop your file here

or click to browse

All files • or paste with ⌘V

filename

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Nothing has left this page since you opened the tool. Show network activity

The browser enforces this: the site’s security policy only lets the page talk to the code libraries’ servers and an anonymous usage counter (tool name, file type, size range). A request carrying your file to anywhere else would be blocked before it left.

Check it yourself: open your browser’s developer tools, go to the Network tab, and run the tool. Or turn off Wi-Fi once the tool has loaded; it keeps working.

How it works

Railway recruitment (NTPC, Group D, ALP) captures your photo live, so you upload only the signature: at least 140 × 60 pixels, 30 to 49 KB, JPG.

For RRB NTPC, Group D and ALP in 2026, you are not asked to upload a photograph: it is captured live by webcam or phone during the form, against a plain white background, wearing dark clothing that covers your shoulders, and is matched to your photo ID. You can retake it until you submit. The signature is uploaded: at least 140 × 60 pixels scanned at 100 DPI or more, filling a 35 × 20 mm box, between 30 and 49 KB, in black ink and in running handwriting; signatures in block or capital letters are rejected. 30 KB is a lot for a small signature, so files often come out too small; here the signature is cleaned and framed at 35 × 20 mm, and if the file is under 30 KB, filler is added so it meets the minimum without changing the picture.

How to use it

Pick RRB. The sizes it asks for load with a link to the official notice.
Add each image. A phone photo is fine: drag and zoom inside the exact frame.
Check the list. Format, pixels and KB are checked the way the portal checks them.
Download. One file per upload, already named and sized.

Frequently asked questions

What is the RRB signature size?: At least 140 × 60 pixels at 100 DPI, 30 to 49 KB, JPG, black ink, running handwriting.
What is the RRB photo size?: There's no photo upload in 2026: the photo is captured live during the application.
My RRB signature is under 30 KB. What do I do?: Make it here: it is padded up to the minimum automatically, without changing how it looks.
Why does the portal still reject my file?: Check you picked the right exam, and that the file you upload is the one downloaded here, not a screenshot or a copy re-saved by another app. Notices change between cycles, so compare with the official link shown on the page.
Are my photo and signature uploaded?: No. They are cropped, cleaned and compressed in your browser, on your device. Location and camera details are removed from the saved files.