Can i use photo buyed on photodune on my demo

Hi, actually i have a dilem understanding how thing work on photodune. I need to know if i buy a image on photodune and use it in my demo of one of my product can i do that ? the image wont be given in the download to my customer i will only use it in my demo since all my buyers will use their own image.

Yes. You Can.

Thanks for your reply