I'm pretty new to printing with the exception of simple 8.5 x 11's on my inkjet printer. I'm looking to print a few pictures in larger formats say 16x20 or a little larger, whatever the next few sizes are.


As for image processing to prep for printing, what needs to be done? What is a good way to check if my image will print well in a large size? What DPI should I aim for etc etc? (i'm really clueless about this stuff)


A few details about how I shoot. I use a Canon 40D and shoot in Raw. When I process the picture and save it on a disk or whatever to send it to, say Kinkos, what is the best file format?





Any help for this noobie s appreciated, thanks.