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Libpng
| Developer(s) | Guy Eric Schalnat, Andreas Dilger, Glenn Randers-Pehrson, et al. |
|---|---|
| Stable release | 1.6.46[1] 
/ 23 January 2025 |
| 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 28 years.[2] 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.
As of 2017[update] the latest versions in the 1.6.x and 1.5.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] All vulnerability warnings and crash bugs are published on the main page.[2]
- ^ "LIBPNG: PNG reference library - Browse /libpng16/1.6.46 at SourceForge.net". Retrieved 25 January 2025.
- ^ a b Greg Roelofs (2025). "libpng". libpng.org.
- ^ "PNG Reference Library: libpng". libpng.org. 2017-09-29.
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