Why is it so hard to print envelopes on a computer? Easy Envelopes answers that question with a simple and intuitive way to print professional-looking envelopes quickly and easily. Other programs are so complex that it takes 15 minutes to configure and print just one envelope. The name Easy Envelopes describes it perfectly. Printing an envelope is extremely easy. Just type in the To: and From: addresses and then click Print. USPS PostNet barcodes are also supported.