Image Editor Tool is among my favorite image editors. It's free,
open-source, powerful, and it works well on both Linux and Mac
computers. There are many ways to edit images with Image Editor Tool,
but if you're just starting out I recommend using the simple yet
effective command line tools. These tools are much faster than the GUI
and allow you to get things done without having to go through menus or
click around for hours. To learn how to use them effectively we'll start
first with batch conversion.The command...