I am a sports photographer. Mostly tennis. I might take 200 photos of a particular player. My intention is to sell the images to the players/parents. I have to send a PDF file of all the images for them to look at. When I send the file they may just copy the images, regardless of the fact I have put a logo over the images. Some people are happy with that. Some just keep the images with the logo over the top. It means I do not get paid. I want to be able to send a file that deletes after a week or so which will encourage people to make the purchase. Does that make sense? I know I can lock the files but it would be great to have a facility that says -delete- after a -X- days. MAKE IT HAPPEN :)