I followed KIWI3435 instructions on another post and figured it out, here is the instructions
First go to the spot on the page like you were going to make a new topic. Above the big white text box their are little ions next to the word format in blue. Click on the little Mona Lisa icon with the green arrow next to it. Then it will ask you to choose a file. Click on it and either take a photo or choose from your camera roll. Then tap upload. It will be in the new topic section and on your profile.
It worked for me