Select the Tools menu and then choose Adjust Size. Read more about image size here, and more about resolution here. The steps to resize an image on a Mac without losing quality are as follows: 1. Image width and height change the image size on screen, while resolution defines the image quality when printed. Such tools typically let you change three separate values: width, height and resolution. Image editing apps come with built in easy-to-use tools to change the size of an image. The more pixels were used to create the entire image originally, the more detail the image contains and the larger the overall file size of the image is.Īlthough large images look sharper and more detailed, smaller images with less detail may be faster to open and load more quickly in an Internet browser. Image size is determined by the total number of pixels that make up an image. By putting many of these small color squares next to one another, a smooth, and clear image is formed. Understanding how image size and resolution work together is quite simple.ĭigital images consist of small colored squares called pixels. The size of an image determines how detailed a digital image looks and how large it is.
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