If you are an individual / seller, selling your property by owner you are not able to add photos on Trulia.
Trulia when it comes to listings, only Realtors / Real Estate Brokerages can list their listings, i.e.
your home needs to be listed with a brokerage/a Realtor listed on a multiple listing service, who then can add photos and list your property on Trulia.
Sorry but as an individual you can ask questions and get professional answers related to real estate purchase, sale, lending etc.
Good Luck to you... and have a wonderful Day :)
Edith YourRealtor4Life! Working always in the very BEST interest of here clients, Buyers, Sellers and Investors alike. Edith covers for @Properties, 30 Green Bay Road, Winnetka, Il. 60093 the city of
Chicago, all N and NW suburbs and the fine homes on the North Shore