pnginfo.txt

来自「十七种模拟器源代码 非常有用的作课程设计不可缺少的」· 文本 代码 · 共 5 行

libpng is the official PNG reference library. It supports almost all PNG features,
is extensible, and has been extensively tested for over five years.

You can download libpng from http://www.freesoftware.com/pub/png/libpng.html