pin (something) up on (something)
To fix or fasten something at a high position on something or some surface with pins or some similar fastener. Would you mind pinning this notice about our upcoming show up on your notice board? I'm pinning posters of my missing dog up on lampposts all over town.
pin something up on(to) something
and pin something upto attach something to something, for display, with pins. I pinned the picture up onto the bulletin board where everyone could see it. I pinned up the picture.