CAT Photo & Document Requirements
Exact specifications for CAT (IN) — compress and resize privately.
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Pick all your files at once. Each is matched to the right slot, resized to the exact rules, and bundled into one ZIP — all on your device.
Photograph
| Format | JPEG |
| Min Size | 10 KB |
| Max Size | 80 KB |
| Recommended Target | 70 KB |
Signature
| Format | JPEG |
| Min Size | 4 KB |
| Max Size | 80 KB |
| Recommended Target | 70 KB |
| Notes | 80×35 mm signature area |
Category certificate
| Format | |
| Min Size | 10 KB |
| Max Size | 200 KB |
| Recommended Target | 190 KB |
Need a different size?
Open Image CompressorWhat changed this cycle
- 2026-09-25 — Signature limit raised to 80 KB (was 20 KB) and category-certificate PDF slot (200 KB) added.
Frequently Asked Questions
What size photo does this exam require?
Each exam has specific photo, signature, and document size requirements listed in the table above. Use the corresponding CompressKaro tool to resize and compress your files to the exact specifications.
Is it safe to compress exam documents here?
Yes, 100% safe. CompressKaro processes all files locally in your browser. Your documents never leave your device, ensuring your personal information stays private.
What format is required for exam photos?
Most exams require JPEG format for photos and signatures. PDF format is typically required for documents. The exact format is listed in the requirements table above.
Can I compress both photo and signature for the same exam?
Yes, use the individual tool pages linked below for each file type. Our compressors work locally and privately.
What happens if my file exceeds the size limit?
Our tools let you set an exact target KB size. The intelligent compression algorithm adjusts quality and resolution to meet your target while maintaining readability.