From Ambrosia Software:
EasyEnvelopes is a beautiful and easy to use solution for all of your envelope printing needs. Whether you're printing a one-off envelope, or a stack of holiday greeting cards, EasyEnvelopes will make it a breeze. Pick from existing standard envelope sizes, or design your own from scratch! You have complete control over the formatting of your envelopes, from the location of the addresses right down to line by line font/size/style control. You can even print the return address on the back of an envelope, or include USPS Intelligent Mail barcodes for quick delivery. EasyEnvelopes will automatically use an address that you've copied to the clipboard, or you can utilize its tight integration with Address Book to quickly look up a recipient's address. You can, of course, manually type or paste in an address, too! You also can choose to use any of your return addresses, complete with formatting and an optional graphic, or no return address at all. Mailing lists for weddings, holiday greeting cards, and other occasions are a breeze as well. Just pick the Address Book group to use, and you can print all of your envelopes with just one click! You can even visually sort through your stack of envelopes before printing, to make sure everything is just right.
What's new in this version:
-- Improved image support for return addresses
-- Enhanced font styling popover to allow font faces to be chosen
-- Fixed and enhanced text formatting handling
-- Fixed a few rare edge-case issues
-- Other bug fixes & enhancements