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HTML / JPEG vs GIF vs PNG
| Number of colors | 16 million | up to 256 | up to 24bit |
| Transparency | No | Yes, but no opacity | Yes, with opacity |
| Compression | lossy | lossless up to 256 colors | lossless or lossy |
| Advantages | good compression for photos | - transparency works on IE6
- animation
| - better lossless compression than GIF
- opacity (multi-level transparency)
|
| Disadvantage | quality loss for graphics | - limited number of colors
- PNG has better compression
- only 1-level transparency
| - file size would be too big for photos
- transparent PNG is not supported by IE6
|
Best for
| photos | animation | graphics, logos
|
