1. What is HEIC / HEIF Format?
Since iOS 11, Apple defaulted iPhone and iPad camera photos to HEIF (High Efficiency Image File Format), packaged inside the .heic file container using the advanced HEVC (H.265) compression codec.
2. HEIC vs JPG Detailed Comparison
| Feature | HEIC (Apple iPhone) | JPG / JPEG (Universal Standard) |
|---|---|---|
| Average File Size | 1.8 MB (50% lighter) | 3.8 MB |
| Color Depth | 16-bit Deep Color | 8-bit Standard |
| Live Photos & Burst | Supported (single file) | No (requires MOV + JPG) |
| Compatibility | Limited (Apple ecosystem) | 100% Universal |
3. Why Windows & Web Portals Reject HEIC
Because HEVC codec licensing involves commercial royalties, Microsoft Windows does not bundle native HEIC support out-of-the-box. Furthermore, job portals (FPSC, PPSC), university admission systems, and visa application sites explicitly mandate .jpg or .png uploads.