Most smart phone users often forget, or don’t even know, that they can edit photos from their camera roll.

Go into the camera roll and click on the edit link on the top right (check around the margins in case the edit link is located someplace else on your cell).

Then check for icons for rotate, auto enhance on, tap red eye (eliminates red eye), and crop (change photo size).

Experiment. The more I investigate, the more functions I find.