I have some fields where multiple images are uploaded. These images need to be created manually to ensure they're cropped correctly, and I want to ensure that each field only accepts an image cropped to exact dimensions. I don't want to crop the images programatically.
For example, field 1 accepts an image cropped exactly to 1000px by 300px, field 2 accepts 700px by 250px, and so on.
Wondering if there's any way to have this kind of validation in Expression Engine, either with a plugin or core functionality?