UPSC Exam Signature Size & Free Resizer

UPSC's One Time Registration (OTR) uses the same limits for the signature as for the photo: a JPG/JPEG between 20 KB and 300 KB, at least 350 x 350 pixels and at most 1000 x 1000 pixels. UPSC asks for the signature on white paper, preferably in black ink.

1 Choose what the photo is for

350 x 350 px20 KB - 300 KBSquareBackground: white paper, black ink

2 Add your signature

Drop a photo here or tap to choose
JPG, PNG or WebP · you can also paste (Ctrl+V)

Your photo stays on your device. Face detection and background removal also run on your device.

This tool crops your signature to a 350 x 350 pixel square. A square is an unusual shape for a signature, so zoom out until the whole signature fits with white space above and below rather than cutting it off.

After upload UPSC shows a preview with a Reload Signature option. Once you click Confirm Upload, the system does not allow any change, so check it first.

UPSC Exam Signature requirements

Print size	Square
Pixels (this tool)	350 x 350
File size	20 to 300 KB
Format	JPG / JPEG
Background	White paper, black ink

UPSC OTR: 350 x 350 to 1000 x 1000 pixels, 20 KB to 300 KB. Sign on white paper, preferably with a black pen.

Official source: upsconline.gov.in · checked 2026-10-13

How to make your UPSC Exam Signature in 4 steps

Sign on plain white paper in the ink colour your form asks for (usually black), keeping the signature inside a small box.
Photograph or scan the signature in even light, with no shadows across the paper.
Pick the image in the tool, tap "Make paper white" if needed, then use Zoom and Move to crop tightly around the signature box.
Check that the size and file size lines show ✅ (20 to 300 KB), then tap Download and upload the JPG.

Common reasons this signature is rejected

A file under 20 KB after heavy compression, or over 300 KB.
An image smaller than 350 x 350 pixels.
Uploading a PDF. Only the photo ID is a PDF; the photo and signature must be JPG/JPEG.
A poor-quality signature. UPSC says the application is then liable to be rejected.

Frequently asked questions

Will UPSC cancel my application because of ink colour?

UPSC's FAQ says candidature is not cancelled because of the size or colour of ink used, but a poor-quality photo or signature can make the application liable to rejection.

Can I change my UPSC signature after uploading?

Only before you click Confirm Upload. After that, UPSC's system does not allow changes.

Is my signature uploaded to a server?

No. Cropping, whitening and compression all run inside your browser. The signature image never leaves your device and nothing is stored.

What is the UPSC Exam Signature size in pixels?

350 x 350 pixels (width x height) is what this tool produces for the UPSC Exam Signature.

What is the UPSC Exam Signature size in KB?

The file must be 20 to 300 KB. The tool compresses your signature to fit automatically.

How do I resize my UPSC Exam Signature online?

Pick your scanned signature in the tool on this page, crop it with Zoom and Move, then download the JPG. It is free and works on any phone or computer.

Related tools

Compress any image to a custom KB size