I made the same mistake but Adobe replaced it with what is said to be Mac compatible. However I am not convinced that it works fully with OS Sierra. I have tried the help chat a couple of times without any joy so far. I think that Adobe will be working on this because at present Elements 15 does not provide good printing control for Mac although it seems to do so for Windows. I am waiting for Adobe to let me know when this is available in an update. Meantime I wish they would stop sending the same sales offer I purchased. I was happy with 14. Perhaps the problem has been the change to Sierra from El Capitan but I do not know. It would be good to hear more from the Sr.Product Manager, please.