What is “pngnq” Package?

Tool for optimizing PNG images
For more details: https://pngnq.sourceforge.io/

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install pngnq.

  brew install pngnq

Now, use pngnq!