PNG reference library 1.5.5 Beta 4 / 1.5.4

Portable Network Graphics library Reference library for supporting the Portable Network Graphics (PNG) format. Now you have all the information related to the PNG image format at your disposal. What’s New in This Release: · Revised CMakeLists.txt (Clifford Yapp) Updated commentary about the png_rgb_to_gray() default coefficients in the manual and in pngrtran.c