Use Envelope Printer to print addresses and return addresses on any size envelope. Print in landscape, portrait or laser (center feed) mode, using any of your system's fonts, and print in color. Envelope Printer keeps a database of addresses and return addresses, and allows you to modify existing entries and add new databases. You may also print a BMP image on the envelope, and add a message. It will even print POSTNET bar codes! The program is shareware. Download the trial version and use it free as long as you like, or purchase the full version of the program for only $15.

Envelope Printer is the Shareware version. The full version can be purchased by clicking on the "CLICK HERE TO ORDER" button below for around  15USD.