I'm taking a class, and I'm working on a group Powerpoint project, and I'm responsible for the photographs (this is for a class unrelated to photography). After our presentation is given, the professor wants a printed copy of the whole Powerpoint presentation. I need to email my photographs to the person assembling the Powerpoint presentation, but each of my photographs are much too large to email. So my question is, what is the maximum size a photo can be for a Powerpoint presentation? I want the file to be large enough to print out nicely, but small enough so that I don't have trouble emailing them. I've found information on what size to use for Powerpoint, but I don't see any comments from anyone that says what to use when you are going to print the slides. Any feedback is appreciated.