There may be times when it’s helpful to adjust the dpi of an image. For instance, when you scan a photograph, you can adjust the dpi to determine the quality of the digital image that is produced. The higher the dpi, the higher the quality, but also the larger the file size. Most scanning software will allow you to adjust the dpi so you can find the optimal balance between quality and size. When printing images, you may want to use a very high dpi to get the best image quality, or a low dpi to save on ink. Some printers will allow you to select a specific dpi from the Printing Properties menu, while others will give you a list of quality options, such as Economy, Fine, and Photo. Economy will use the lowest dpi, in order to minimize ink usage, while Photo will give you the highest dpi to better reproduce the original image.