How to Format UPSC Civil Services & OTR Photos (350×350 to 1000×1000 px, 20–300KB)
Need to fix your photo or signature right now?
The Union Public Service Commission (UPSC) operates one of the strictest image validation scripts in India across its One-Time Registration (OTR) portal for Civil Services (IAS/IPS), NDA, CDS, CAPF, and Engineering Services. Unlike virtually every other recruitment board that uses a rectangular 3.5cm × 4.5cm ratio, UPSC requires both your photograph and your signature to fit inside a 350×350 pixel to 1000×1000 pixel bounding box and weigh between 20KB and 300KB.
1. Official UPSC 2026 Image Upload Specifications
| Document Type | Allowed Pixel Dimensions | Allowed File Size | Ideal Calibration Target |
|---|---|---|---|
| Passport Photograph | Min: 350 × 350 px Max: 1000 × 1000 px |
20 KB to 300 KB (JPG) | 600 × 600 px at 95 KB |
| Scanned Signature | Min: 350 × 350 px Max: 1000 × 1000 px |
20 KB to 300 KB (JPG) | 500 × 500 px at 45 KB |
| Photo ID Card Document | A4 Portrait PDF | 20 KB to 300 KB (PDF) | Single-page PDF under 150 KB |
2. Solving the "Under 20KB" Trap on 350×350 Signatures
Here is the most common technical failure UPSC aspirants face: when you resize a clean black-and-white signature to exactly 350 × 350 pixels, a standard JPEG encoder compresses the large white areas so efficiently that the resulting file is only 8KB to 14KB. When you upload it, the UPSC portal throws an error: "File size must not be less than 20 KB."
You have two ways to solve this immediately:
- Use the UPSC Resizer Preset: Our UPSC Photo & Signature Resizer automatically calibrates the output quantization table and pixel density so your file lands comfortably between 40KB and 100KB—never dropping below the 20KB floor.
- Use the KB Enhancer: If you already have a perfectly cropped 350×350px image that is too small in KB, upload it to our Increase Image Size in KB utility and set the target to 50KB.
3. The 75% Face Coverage & Name/Date Placard Rule
Recent UPSC Civil Services and NDA notifications mandate three visual rules that automated AI checks verify upon upload:
- Three-Fourth (75%) Face Visibility: Do not upload a waist-up portrait. Your head (from the crown of the hair to the bottom of the chin) and upper shoulders must occupy roughly 75% of the total image area.
- Name & Date Stamp: The bottom 15% of the photo must feature a clean white rectangular strip with your full name and the date the photo was taken (e.g.,
AARAV VERMA | 12-10-2026) written in clear black text. - Recency Rule: The photograph must not be more than 10 days old from the commencement of the online application window.
4. Formatting Your Photo ID PDF (20KB–300KB)
In addition to the JPG photo and signature, UPSC requires your Aadhaar Card, Voter ID, PAN Card, or Passport in PDF format between 20KB and 300KB. If you have a JPG scan of your ID card, use our Convert JPG to PDF 100KB tool to package it into an exact 100KB PDF in one click.
Frequently Asked Questions
Why does the UPSC portal say "Image dimension should be between 350x350 and 1000x1000 pixels"?
Unlike SSC or IBPS which use rectangular passport ratios, UPSC enforces a strict 1:1 square aspect ratio for both photographs and signatures on its online portal, where both width and height must sit between 350 pixels and 1000 pixels.
Is it mandatory to print my name and date on the UPSC photograph in 2026?
Yes. Latest UPSC notifications require the candidate’s name and the date on which the photograph was taken to be clearly printed on the bottom of the portrait, with the face occupying at least 75% of the frame.
What happens if my 350x350 pixel UPSC photo is only 14KB?
The UPSC portal rejects any JPEG under 20KB (20,480 bytes). Either resize the photo to 500×500 pixels or run it through our Increase Image Size in KB tool to safely reach 45KB–100KB.