Competitive Exam Formats
How to Compress Photo & Signature for Govt Job Exams (SSC, UPSC, NEET, GATE)
Published by Rishabh Dev • Updated August 16, 2026 • 5 min read
Need an exact 20KB, 50KB, or 100KB file right now?
Our client-side Size Manager and Passport Photo Maker tools allow you to compress photos and crop signatures to exact government portal thresholds in one click.
1. Major Examination Portal Photo & Signature Requirements
Almost all government job portals (SSC, UPSC, State PSC, NTA, IBPS, Railways RRB) use automated validation scripts that immediately reject uploads if dimensions or file sizes exceed strict thresholds. Here is the official specification cheat sheet:
| Exam / Portal | Photo Dimensions | Photo Size Limit | Signature Size Limit |
|---|---|---|---|
| SSC CGL / CHSL / MTS / GD | 3.5 × 4.5 cm (350×450 px) | 20 KB – 50 KB | 10 KB – 20 KB |
| UPSC Civil Services (IAS / IPS / NDA) | 350 × 350 to 1000 × 1000 px | 20 KB – 300 KB | 20 KB – 300 KB |
| NTA NEET / JEE Main / CUET | 3.5 × 4.5 cm (Postcard 4×6") | 10 KB – 200 KB | 4 KB – 30 KB |
| GATE / IIT JAM / IIM CAT | 480 × 640 px (3.5×4.5 cm) | 20 KB – 200 KB | 5 KB – 200 KB |
| IBPS PO / Clerk / SBI PO | 200 × 230 px | 20 KB – 50 KB | 10 KB – 20 KB |
2. How to Prepare Your Signature for Upload
- Sign on Clean White Paper: Use a dark black or blue ballpoint/gel pen on unruled white paper.
- Take a Close-Up Photo: Hold your phone directly above the paper without casting a phone shadow.
- Crop to Signature Boundary: Crop excess margins around the signature so the text fills the canvas.
- Compress to 10-20 KB: Use the Size Manager tool, enter
20KB target value, and export as JPG.
3. Step-by-Step: Reducing Image to 50KB or 20KB Online
- Open WebToolkitBox Size Manager.
- Drag and drop your photo or scanned signature.
- Click the 50 KB (Govt Forms) or 20 KB (Signature) preset chip.
- Click Process & Download. Your image is instantly formatted and compressed client-side, 100% private without server uploads.