Print-ready file in a given designer

Hello, is there a possibility to limit the download of the ready-to-print file by designer? For example, I have design templates for cards and I have two options for the client: we can print the cards or allow the client to download the design once paid. But not all products are not printed, some jobs are not printed and that is why we want to give the customer the possibility to download the design to print it in their friendly printer. I await your reply.