How to make a duplicate of a photo on iPhone before I crop or edit it? There are many times I want to crop a photo using iPhoto on iOS and post to Facebook, and then possibly crop it another way (like panoramic this time), and post to Facebook, but I don't want to lose the original.
Is there a way to make duplicates of the original and edit it using iPhoto on iOS?
P.S. I also found that when you crop a photo in the Photos app, the original is not lost.  You can simply re-crop it again (or un-crop it) to get a different cropping or get back the original.  But, it still might be good to have a duplicate if you want to keep 2 different ways of cropping of the same photo.
As of iOS 9.3 you can choose to Duplicate photo directly. Pretty convenient.