The Rotate dialog allows you to rotate a picture by a specified number of degrees.
"Rotate Left by 90 degrees" - Enable this option to rotate the picture(s) left by 90 degrees.
"Rotate Right by 90 degrees" - Enable this option to rotate the picture(s) right by 90 degrees.
"Rotate by 180 degrees" - Enable this option to rotate the picture(s) 180 degrees.
OK button - Closes this dialog and saves any changes you have made.
Cancel button - Closes this dialog without saving any changes you have made.