This guide explains the common photo and signature requirements for Kerala PSC, Indian passport/visa applications and university/exam portals. It includes practical pixel examples, recommended KB targets, format advice (JPG, PNG, WebP) and step-by-step instructions to prepare files that pass portal checks.
1. What portals commonly ask for
Most portals check a combination of:
- pixel dimensions or aspect ratio (for example 35 x 45 mm or 350 x 450 px)
- maximum file size in KB (common: 50 KB, 100 KB, 200 KB, sometimes up to 500 KB)
- file format allowed (JPG, PNG; WebP accepted rarely)
- background requirements (plain white or light background for passport-style photos)
2. Reliable KB targets for different use cases
- Very strict portals - aim for 50 KB.
- Typical government & exam portals - 100 KB is commonly accepted.
- Relaxed portals / email - 200 KB gives higher quality.
3. Pixel examples and DPI notes
- 35 x 45 mm at 300 DPI ≈ 413 x 531 px
- 350 x 450 px - common in Indian portals
- 600 x 800 px - higher quality for printing
4. Format guidance
JPEG (JPG): Best compatibility and smallest for photos.
WebP: Better compression efficiency; use when accepted.
PNG: Use for signatures or transparency.
5. Step-by-step: prepare a photo for Kerala PSC
- Make a clean crop with plain background.
- Resize to recommended pixels (350 x 450 px).
- Compress to 100 KB using Compressly.
- For signatures, try 30-60 KB targets.
6. Troubleshooting portal rejects
- Confirm exact format required.
- Confirm pixel dimensions.
- Avoid special characters in filenames.
- Try slightly higher KB if clarity is poor.
7. Accessibility & privacy note
Compressly processes images inside your browser only. Files are not uploaded to any server.
8. Quick links
9. FAQ
Q: Which KB should I try first for KPSC?
A: 100 KB is a safe starting point.
Q: My portal needs exact pixel size - what now?
A: Resize first, then compress.
If you want, download the image after compressing and test upload on the portal.
Open Compressor