Coauthor of PNG spec, developer/maintainer of libpng. Author of pngcrush. Retired, father of four, grandfather of twelve.
Ohloh profile: https://www.openhub.net/accounts/glenn_randers-pehrson
5 Why are the text and boundaries / edges of graphics blurry in this image, and how can I fix it? sep 13
1 Problem with pixelation when copying an illustrator logo to photoshop as a smart object and exporting for web as a png may 29