Re: How to put in-game photos on the walls of my sim's house ?

Photos can be dragged out of a Sim's inventor and place in the world. The photo will automatically adjust its frame depending on whether it's placed on a surface or the wall. Unlike paintings however, photos only offer décor scores and cannot influence emotions.

i located this info at 
http://www.ign.com/wikis/the-sims-4/Photography