PPI, or Pixels Per Inch, is a measure of image resolution that specifies the number of pixels displayed per inch in a digital image or on a screen.


Pixel Density


  1. High PPI: A smartphone with a 1080p display typically has around 400-500 PPI, resulting in sharp and detailed images.
  2. Low PPI: An older computer monitor with a 72 PPI display shows less detail and may appear pixelated when displaying high-resolution images.
  3. Printing: A 4x6 inch photo printed at 300 PPI would require an image resolution of 1200x1800 pixels for optimal quality.


  • For Printing: Aim for at least 300 PPI to ensure sharp and detailed prints, especially for photographs and professional documents.
  • For Web Use: Use 72-150 PPI to balance quality and file size, ensuring faster load times while maintaining good visual quality on screens.
  • For High-Resolution Displays: When designing for modern screens like those on smartphones and tablets, consider using images with a PPI of 200 or more to match the display's capabilities.

Understanding PPI helps in choosing the right resolution for both digital and print media. Learn more by contacting AP&B today!