I don't know if I am in the right section so I sincerely apologise if I am somewhere lost right now.
I have an Etsy store selling Printable designs. Either they buy it and I print it for them, or they can download specific files to print on their own. One of those designs is a planner and somebody wrote to me today asking if they can use it on their iPad?!
Now I have seen on Etsy something in that region. What some stores do is create an editable PDF file, for example for wedding suites, where the buyer can simply change the names and other text information to your preference without having to ask the seller/designer to edit the information for them.
However, is there something like that for an iPad?