Some ecommerce websites don't work well with non-square product images or aren't easily adaptable. So, when I uploaded our item pictures, I have to take the rectangular images and expand the canvas in one direction to make them square.
We'll have a folder with rectangular images with their longest side horizontal or vertical. These images also vary in size greatly from 100 to 1200 pixels on the longest side.
So I have setup a couple of batches in pshop that must still be performed manually. For example
Take 2000 images and make them 600px wide.
Place all "tall" images in one folder and "wide" images in another.
Take "wide" images and increase the canvas height to 600px and fill empty top and bottom with white. Images are now square
Take "tall" images and change height to 600px, keeping same aspect ratio. Then increase canvas width to 600px, filling empty sides with white. Images now square
Your software makes quick work of other image operations and would greatly help with making square images. It just takes too many steps that we need to baby-sit in photoshop.