As a graphic designer, I often have people send me images to include in a newsletter or brochure. As soon as I see the size of the file, I know that it looks perfect on their computer monitor, BUT what they don’t realized is that if that same image is printed, it will not have the same crisp, clean look.
The beauty of that online image is that at a very low resolution (generally 72 dpi), it can look great and displays quickly. However when it comes to a printed image, it needs to be in the neighborhood of 300 dpi (dots per inch….that’s dots of ink) to display well.
So now when your graphic designer asks for a high resolution image for your next printed piece, you can impress him/her with your knowledge and understanding of why the 300 dpi image is necessary…And go ahead and throw out terms such as 300 dpi vs 72 dpi…Then ask about CMYK vs RGB files….It’ll freak ’em out!