i am using photoshop on my iPad. I have never had this issue,but now all the sudden it won’t allow me to add any pictures. Is there only a certain amount you can add?
I suspect it would be limited by the memory installed in your iPad.
I opened several new projects and it was that the version for the iPad only allows you to input 7 pictures if I remember correctly. So making a collage isn’t really something you can do with the program.