Scale an image 50% its original size

ImageMagick image conversion tool.
More information: <https://imagemagick.org/script/convert.php>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

convert {{image.png}} -resize 50% {{image2.png}}

click the source code to copy install convert on any operating system with command-not-found.com