Note: There is a check box near the bottom of the Adjust Size. window labeled Scale proportionally. Finally, save the file before closing it.There should be three text fields along the left side of the window labeled Width, Height, and Resolution.On the right side of the window, click the box that states inches and select your desired unit of measurement. In the menu bar at the top of the screen, select Tools, then Adjust Size.Open the desired image file using the Preview application.Stepsīefore altering the image, make a copy of the original file as this process is permanent. The resolution of the image can also be determined. Follow these steps to change the dimensions and/or resolution of an image file using macOS. Often when formatting options are limited, an image may have to be exactly the right size for a webpage, blog, or profile.Īn image can be scaled by percentage, pixels, or physical measurement (inches/cm/mm). How do I change the dimensions of an image for macOS? SolutionĬhanging the dimensions of an image can be very important.
