🚧 This documentation is WIP
We recommend Flameshot
sudo apt install imagemagick in Linux/WSL or brew install imagemagick in macOS
Imagemagick is swiss army command line tool for image processing.
So to resize an image called bigimage.jpg inside a 640x640 envelope, maintaning its aspect ratio and save it to a file named smallimage.jpg we would use:
convert bigimage.jpg -resize 640x640 smallimage.jpg
Or you could modify them in place (overwrite original image). The following will resize all the .jpg files of your current folder:
mogrify -resize 640x640 *.jpg
One of the utilities of graphicsmagick is the ability to compose images in a horizontal strip, which is very useful for documenting processes.
convert image1.jpg image2.jpg -geometry x400 +append stripimage.jpg
Learn how to vectorize a B/W image in Inkscape. You will need to do this many times.