A term meaning Pixels Per Inch. It represents the total number of pixels in the horizontal and vertical directions. This term is often used interchangeably with Dots Per Inch (DPI) although PPI is more accurately used for monitors while DPI is used for printers. Monitors display at a resolution of 72 pixels per inch, thus this is the standard PPI used for all internet and video images. Photographs and color images are usually set to 300 PPI as this is the resolution needed for quality print output. As a note, prior to the advent of digital laser presses, the resolution of images to be printed on a sheet-fed or web press needed to be 254 PPI. The relationship between DPI and PPI is further covered under DPI.