PrintEnvelope is an utility for printing a address on a envelope. Only name, ZIP and address is necessary for the envelope printing. You create a address book such like a Excell sheet, or import a CSV file which is created by Excell or Numbers. And you can do "Drag&Drop" from Apple Address Book name column. And there's preview in the widow that you enter addresses. you can see a printing image while you enter addresses by the prevew. Also fonts and print position can be changed through a option panel.