For resumes, student IDs, certificates. Only 3×4cm size is standardized.
| 📐 Size | 30 × 40 mm |
|---|---|
| 🖥️ Resolution | 354 × 472px |
| 🔍 DPI | 300 |
| 🎨 Background | White |
| 📏 Head Height | Varies by institution |
| 📅 Validity | Varies by institution |
| 📁 File Spec | JPEG |
Background removal · Crop · Retouch in one step