DPI and PPI differentiation: Which statement correctly defines them?

• A. DPI is display dots per inch; PPI is print pixels per inch.
• B. DPI is print dots per inch; PPI is display pixels per inch.
• C. DPI and PPI both measure display resolution.
• D. DPI and PPI are unrelated to resolution.

Answer: (B)

Understanding how DPI and PPI differ helps you predict how an image will look on screen versus in print. DPI (dots per inch) measures how many ink dots a printer can place in one inch, which is all about print quality and detail. PPI (pixels per inch) measures how many pixels from a digital image fit into one inch on a display (or when prepared for print), affecting how large the image appears and how sharp it looks on screen.

The statement that matches these definitions is that DPI is print dots per inch and PPI is display pixels per inch. This distinction matters because a high PPI image on a small display can look very crisp, while printing requires sufficient DPI to avoid visible pixelation. For prints, a common target is around 300 DPI for good quality; for displays, PPI depends on the device, with modern screens often offering hundreds of pixels per inch.