UPSC Photo Size 2026: Complete Guide (Exact KB, Pixels, Format)

Last updated: July 2026

Every UPSC application — from the Civil Services Examination to NDA and CDS — starts with the One Time Registration (OTR) portal, and the very first thing that trips candidates up is the photo and signature upload. This guide covers the exact specification, why UPSC's system is so particular about it, and how to avoid the rejection reasons that delay thousands of applications every cycle.

UPSC Photo and Signature Specification

Why the OTR Portal Matters So Much

UPSC's One Time Registration system was introduced to save candidates from re-entering personal details, photo and signature every time they apply for a new exam. You create your OTR profile once, and it carries over to your applications for the Civil Services Examination (CSE/IAS), National Defence Academy (NDA), Combined Defence Services (CDS), Central Armed Police Forces (CAPF), and Employees Provident Fund Organisation (EPFO) recruitment. This is exactly why getting the photo and signature right the very first time matters so much — a poor-quality or incorrectly sized image doesn't just affect one exam, it follows you across every UPSC application until you update it.

How Recent Should Your Photo Be?

UPSC does not want an old ID-style photograph — it expects a genuinely recent one. While the exact wording can vary slightly between notification years, a widely followed safe practice among successful applicants is to use a photograph clicked within roughly the last 10 days to a few weeks before starting the OTR form, rather than reusing an old passport or Aadhaar photo from years ago. This matters at two points later in the process: during document verification before the exam, and again at the interview stage for CSE candidates, where a mismatch between your OTR photo and your current appearance can cause unnecessary friction. Always cross-check the recency guidance in the specific notification you are applying under, since UPSC occasionally updates its instructions.

Common Reasons UPSC Rejects Photo Uploads

• Background clutter — a wall with posters, curtains with patterns, or an outdoor background with trees and people in the frame is a frequent reason candidates get asked to re-upload.
• File size outside the accepted band — a photo straight from a modern smartphone can be several MB, far above the 300KB ceiling, while an over-compressed image can drop below the 20KB floor and look pixelated.
• Signature mismatch — some candidates upload a digitally typed signature or one signed with a stylus on a phone screen, when UPSC expects a genuine pen-on-paper signature, scanned or photographed.
• Face partially covered — sunglasses, caps, and even large spectacles with heavy glare have caused rejections during scrutiny.
• Wrong aspect ratio — since the photo range spans from 350×350 up to 1000×1000, some candidates upload a non-square, rectangular photo without resizing it into the square format UPSC expects.

How to Fix Your Photo Before You Start the OTR Form

The easiest way to avoid all of the above is to prepare your photo and signature before you even open the OTR registration page. Take your photo against a plain, light-colored wall in good daylight, make sure your face is fully visible, and keep your signature on a clean sheet of white paper. From there, you just need a way to hit the exact pixel dimensions and file size UPSC expects — most phone photos are far too large by default and need resizing and compression together, not just one or the other. If your source photo has an unusual aspect ratio, you may also want to first crop it closer to square using our free image resizer, and if your final file is still a little heavy after resizing, our image compressor can bring it down further before you upload it to OTR.

A Note on Your Signature

Your UPSC signature should be the same one you use to sign real documents — not a stylized version created just for the application. Sign in black or blue ink on plain white paper, photograph it in good lighting without shadows falling across the ink, and crop it close to the signature itself before resizing to 350×150 pixels. A shaky or overly faint signature scanned in low light is one of the more avoidable reasons candidates end up re-uploading midway through a long registration form.

Frequently Asked Questions