Complete Guide to Image Resizing for Indian Government Jobs (2025)
Applying for exams like SSC CGL, CHSL, UPSC Civil Services, or IBPS PO? The most common reason for form rejection is an incorrect photo or signature format. Unlike standard image compressors, Pictokb is specifically tuned to the "Quantization Tables" used by NIC (National Informatics Centre) servers.
Official Size Requirements Cheat Sheet
| Exam Name | Photo Limit | Signature Limit | Dimensions (cm) |
|---|---|---|---|
| SSC CGL/CHSL | 20 KB - 50 KB | 10 KB - 20 KB | 3.5cm x 4.5cm |
| UPSC (IAS/IPS) | 20 KB - 300 KB | 20 KB - 300 KB | 350px x 350px |
| IBPS (Bank PO) | 20 KB - 50 KB | 10 KB - 20 KB | 4.5cm x 3.5cm |
| Passport Application | Max 100 KB | Max 100 KB | Square Aspect |
How to Compress Signature to 10kb or 20kb?
Signatures are tricky because they contain thin lines. If you use a normal compressor, the lines disappear (blur). Pictokb uses "Adaptive Thresholding". This means we keep the black ink sharp while aggressively compressing the white background paper. This is how we achieve 10KB file sizes that are still perfectly readable by computer scanners.
Why use Client-Side AI Compression?
Privacy is critical. When you upload a photo to sites like 11zon or Pi7, your image often travels to a server in Europe or the US. Pictokb runs entirely in your browser using JavaScript.
- Zero Upload Time: Works instantly even on 2G/3G speeds.
- 100% Privacy: Your biometric data (face/signature) never leaves your device.
- Unlimited Attempts: Try 20 times until you get the perfect size.
Common Questions
My photo is becoming blurry at 20KB. What to do?
This happens if your original image dimensions are too large (e.g., 4000 pixels). Our tool automatically detects this and resizes the dimensions (e.g., to 800 pixels) before compressing quality. This keeps the image sharp.
Can I resize for Pan Card and Aadhar?
Yes. Pan Card / NSDL forms usually require a 200 DPI setting. While web tools don't set DPI, our pixel-density optimization ensures the print quality matches 200 DPI standards.