In creating the cover for my book, my illustrator and I have gone back and forth together using our digital imaging software, the internet and many other tools, . . . . and finally I have a cover design that is perfect. The only problem is that it is in 72 PPI and my Cover designer (as opposed to my illustrator) requires an illustration that is in 300 PPI. My only digital imaging software is Pixelmator on my Mac and when I change the image to 300 PPI the size gets too small. Does anyone have any suggestions on how to achieve my 300 PPI goal? Right now the only thing I can think of is to print out the desired cover illustration, take it over to my nephew, who is a photographer and have him take a picture of it with his 300 PPI format camera. Does anyone have any other ideas?