ABSTRACT
Pixels per inch – ppi – is a measurement of image resolution which defines the size an image will print. An image that is 1600 by 1200 pixels at 300 ppi will print at a size of 5.3 4.0 inches, or it could be printed at 180 ppi for a printed size of 8.89 6.67 inches. The higher the ppi value, the better quality print you will get – but only up to a point. 300 ppi is generally considered the point of diminishing returns when it comes to inkjet printing of digital photos.
