DPI stands for Dots Per Inch and is a measure of the resolution of an image. It refers to the number of individual dots that can be placed in a line within the span of one inch. DPI is used as a measurement for printing purposes and digital media such as web graphics or mobile devices. The higher the DPI, the more detail and clarity will be present in an image. DPI is used to indicate the clarity and detail of an image on paper. It is an important measurement for photographers and designers, as it will determine the quality of a printed asset – whether for a poster, a brochure, or a glossy magazine. The optimal resolution for images on screen is 72 DPI. Increasing the DPI won’t make the image look any better, it’ll just make the file larger, which will probably slow down the website when it loads or the file when it opens. Print resolution is measured in dots per inch (or “DPI”) which means the number of dots of ink per inch that a printer deposits on a piece of paper. So, 300 DPI means that a printer will output 300 tiny dots of ink to fill every inch of the print. 300 DPI is the standard print resolution for high-resolution output. This means that images should be a minimum of 300 dpi x 300 dpi or 90,000 dots per square inch to produce a high-resolution print.

To find the DPI resolution of an image, Adobe Photoshop can be used. The DPI resolution of an image can be found in the image properties. It is important to note that DPI and PPI (Pixels Per Inch) are not the same thing, although they serve similar purposes. PPI refers to the number of pixels that make up every inch of a digital image and is used to describe image resolution on a screen, rather than in print.