Turn on your iron and set it to the appropriate setting for your fabric type. Have your iron's sprayer filled or a spray bottle of water handy if needed to use during ironing. Fold and or arrange the pleats the way they are supposed to appear. As you hold them in place, iron over the arranged pleats beginning at the top of the pleat and working your way downward. For stubborn fabric, it may be necessary to pin the pleats in place. However, do not iron over the pins. Pull them out one at a time as you iron. Remember to iron in a top to bottom manner.