Go to the "Image" menu and scroll down to "Image Size."



Our image is way too big for emailing. It should be more like 500 pixels wide with a resolution of 72 dpi. Monitors can't really display anything over 72 dpi, so all that extra resolution is just a waste and just adds to the size of the file. If we wanted to print this photo, we would leave it at 300 dpi, which is a great resolution for printing.



Un-check "Resample Image", type 72 in the "Resolution" field and hit "OK."



Open the "Image Size" dialog box again and check "Resample Image."