Why is my print fuzzy?! Well, we call this pixilation. The reason this happens is because the file resolution or DPI (Dots Per Inch) is incorrect for the image being printed. The difference between 300dpi and 72dpi is found in the amount of pixel information (or dots) for every square inch of the image you are viewing.
The more dots/pixels the image contains, the sharper the image will print. When designing graphics for commercial printing purposes, your images should be 300 dpi.
Web graphics and online photos are normally created at 72dpi. This low resolution is great for the web, and for viewing images on your monitor. Doesn’t matter where you are in the world, or if your a Mac Aficionado or PC Wizard what you’re looking at on your screen is all 72dpi, and completely useless in the world of print.