I used some 3M spray adhesive for my newly printed label. Its held on for 3 years perfectly and probably would be removable if needed although I've never tried.
If the product is called “Spraymount”, that is exactly what it is designed to do. There are instructions on the can for temporary, removable mounts, and for permanent, as well.
A staple in the art and graphics world for about 40 years, and, little known anywhere else.
Check in art supply stores. Usually comes in a can with two nozzles, just in case.
Best,
Ted