Builder AU: Convert Images with Open Source ImageMagick

“Tools like the GIMP and similar graphical applications are
great for modifying and manipulating images. Sometimes, however,
they can be overkill for little things that need to be done, such
as converting file types or resizing images. As well, a graphical
tool can be time consuming and difficult to script, unlike CLI
tools.

“The ImageMagick suite of programs allows you to manipulate
images from the command-line, making it much simpler to convert
large numbers of pictures or even for that single quick image
conversion…”

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