If I, for example, wanted to resize a bunch of sprites from 96x96 to 96x64 is there any program that I could use to resize all of them at once?
Even though the method of doing it isn't the primary purpose of the feature, Photoshop has this functionality. 1. File > Scripts > Load Files into Stack to import all the images you want to edit into one file, on separate layers. 2. Image > Canvas Size to crop the layers, I think you can specify from which edges you want to crop n pixels, but I could be wrong. You could also use the Crop tool. 3. File > Scripts > Export Layers to Files (or similar, I don't quite remember) to save each file individually again Step 1 might take a while, it will look like it's locking up, but it's actually fine. Hope this helps!