Editing a saved image
I'm in a design fundamentals class online, and one of my assignments is to arrange black and white shapes from the side of the project to the main portion of the screen. The project starts off as a template I download from the online classroom, and when opened has many layers, one for each shape. When I save as a .jpg file, and have to revise it for the next assignment, the file that I save now only has one layer, and that's the entire project. I can't move anything any more. Is there a way to separate the layers again?
