I'm certainly not a master at this kind of stuff, but asked my hubby about it for you (he is a CG guy). Do you know what size (in inches) the actual print of the picture will be? In order to make your picture 300 dpi you would need to know that. Or you could ask them what exact resolution they need.
If you want to send me the picture, I could get my hubby to try a few things to make the picture acceptable to them, even without knowing what the physical size of the printed picture would be. Just let me know and I'll send you my email.
Last edited by Scully; 05-20-2012 at 12:35 PM.