libpng
| Developer(s) | Guy Eric Schalnat, Andreas Dilger, Glenn Randers-Pehrson, et al. |
|---|---|
| Stable release | 1.6.34
/ September 29, 2017 |
| Repository | |
| Written in | C |
| Operating system | Cross-platform |
| Type | Image library |
| License | libpng License |
| Website | libpng |
libpng is the official Portable Network Graphics (PNG) reference library (originally called pnglib). It is a platform-independent library that contains C functions for handling PNG images. It supports almost all of PNG's features, is extensible, and has been widely used and tested for over 18 years.[1] libpng is dependent on zlib for data compression and decompression routines.
libpng is released under the libpng license, a permissive free software licence, and is free software. It is frequently used in both free and proprietary software, either directly or through the use of a higher level image library. In 2017 a 21 years old bug was fixed.[2]
As of 2017[update] the latest versions in the 1.5.x and 1.6.x branches were considered as release versions, while 1.4.x, 1.2.x, and 1.0.x were considered as legacy versions getting only security fixes.[3]
External links
- Official website
- libpng development home page
- libpng manual
- A howto on writing PNG images using libpng
References
- ^ Roelofs, Greg. "libpng Home Page". libpng. SourceForge.
- ^ Richard Chirgwin (2017-01-03). "Libpng library gets fix for truly ancient bug". The Register. Retrieved 2017-10-08.
- ^ "PNG Reference Library: libpng". libpng.org. 2017-09-29.
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