A Guide to Image Resolution

Guide to Image Resolution

Resolution refers to the number of colored dots or pixels that make up an image. It is commonly expressed in dpi or dots per inch.

Resolution Rules-of-thumb:

  • The higher the dpi, the greater the resolution, the better the image quality. But don't go overboard. Higher resolution images create larger file size.
  • Image resolution is directly and inversely proportional to an image's physical size. When you increase the resolution of an image, reduce its size. When you enlarge an image, lower the resolution. Otherwise, the image will print poorly.
  • For printed images, the ideal resolution is 300 dpi for images and 400 dpi for text at the final printed size.