Portable Network Graphics
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PNG was created to improve GIF image-file format. Removing patent
license issues at that time; and removing 256 colors limitation.
Nome | Portable Network Graphics |
|---|---|
| Nome corto | PNG |
| Developed by | W3C (donated by PNG Development Group) |
| Year | 1996 |
| Vantaggi | Widely accepted format Lossless Transparency support |
| Svantaggi | Lossless only. Poor compression for photographic images. |
| Caratteristiche | |
| Vector graphics | No |
| Raster image | Sì |
| Lossless | Sì |
| Animation support | - Animated PNG is an extension to the PNG format which is compatible with the Gecko and WebKit layout engines and many image editing suites. Users of software incompatible with APNG see the first frame as a still. |
| Transparency support | Sì |
| Layers support | No |
| HDR | No |
| Maximum bit depth | 16-bit |
| CMYK support (for print) | No |
| Maximum number of channels | 4 (RGBA) |
| Commonly used for | Icons Simple web graphics like logos Illustrations, or raster text rendering |
| Browser support (without plugin) | |
| Google Chrome | Sì |
| Microsoft Edge | Sì |
| Safari | Sì |
| Firefox | Sì |
| Opera | Sì |
| Additional | |
| File extensions | Still: .png; Animated: .png, .apng |
| Wikipedia | wikipedia.org/... |
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