rOptiPng,hosted on google code, is an modification to OptiPNG to support the optimization of multiple directories with recursion,making it easier to use,especially when optimizing many image files in different directories,such as a website.
To optimization of multiple directories recursively with rOptiPng,simply by using the ** wildcard in file path.
roptipng c:\photos\**\*.png d:\website\**\*.png
if you find it useful, a time saver,or even just mildly interesting,then my effort was worth it.
if you have any suggestions on how to improve it, I’d love to hear it.