optipng src 2a964c9eef4e020c5c8ed1a5e5ee99020f83bd7efa611580b2647dcceed4a80e A PNG optimizer and converter OptiPNG is a PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM; TIFF support is coming up) to optimized PNG, and performs PNG integrity checks and corrections. bero <bero@lindev.ch> https://optipng.sourceforge.net/