How to set a higher dpi without changing an image’s resolution

Some purposes require high-resolution images. Others require high-density ones. How can you tell the difference and provide what’s needed? Resolution and image pixel density are two separate concepts often blurred into the single term “resolution.” This makes it difficult to provide what’s needed.Resolution refers effectively to the amount of information in an image, and more concretely to its dimensions measured in pixels. The amount of detail you capture in an image—whether a photo, scan, or graphic—is directly related to its resolution, as to capture ever more detail, you need ever more pixels. You might need quite a lot of pixels to provide a zoomable image of something with a lot of detail, like a machine, or to print a large-format photograph.To read this article in full, please click here