Indian Government Photo & Signature Size Guide (2026)
Every specification you need for online forms - Aadhaar, PAN, passport, voter ID and signatures - in centimetres, pixels, DPI and kilobytes. Each row links straight into the PixelSize tool with the correct size and DPI pre-filled, so your file passes the first time.
Master specification table
| Document | Photo size | Pixels (at DPI) | DPI | File limit | Resize now |
|---|---|---|---|---|---|
| Aadhaar photo | 3.5 × 4.5 cm | 276 × 354 px | 200 | 10-200 KB, JPG | Guide + tool |
| PAN photo | 3.5 × 2.5 cm | 276 × 197 px | 200 | Max 50 KB, JPG | Resize to 50 KB |
| PAN / form signature | 3.5 × 1.5 cm | 276 × 118 px | 200 | 10-40 KB, JPG | Resize to 40 KB |
| Passport photo | 5.1 × 5.1 cm (2 × 2 in) | 600 × 600 px | 300 | Max 500 KB, JPG | Resize to 500 KB |
| Voter ID photo | 3.5 × 4.5 cm | 276 × 354 px | 200 | Max 200 KB, JPG | Resize to 200 KB |
ℹ️ These are the commonly published specifications. Always confirm the exact limits shown on your official form before submitting - portals update their rules occasionally.
Why KB and DPI both matter
Portals check two different things. The file size (KB) limit keeps their servers fast - exceed it and the upload button simply refuses. The DPI and pixel dimensions decide whether your photo prints and verifies correctly - get it wrong and the application bounces back weeks later. PixelSize fixes both at once: it compresses to your exact KB and writes the correct DPI (200 or 300) into the JPEG metadata, which most free compressors skip entirely.
How to use this guide
- Find your document in the table above.
- Click its Resize now link - the tool opens with the right KB and DPI pre-filled.
- Upload your photo or scan, check the true-size preview, and download the compliant file.