Royal Mail Online Postage
Royal Mail Online Postage, introduced in early 2006, but not promoted heavily until September 2006, is an online service provided by Royal Mail in conjunction with Lockheed Martin, where customers can print out an indicium, the equivalent of a postage stamp, online onto a label or envelope of certain specified types, or plain paper, without having to buy a normal stamp.
Purchasing
The user can print indicia, one at a time, for various Royal Mail services.For payment there is a Royal Mail "Online Prepay Account", in which funds can be deposited with a payment card. If the indicium is over £2.99, a payment card can be used without an account. Labels are in PDF format.
A name and address must be printed, with support for import in .CSV format. Addresses can be saved in an online address book. To check that an address will be printed properly, there is a "Try a Test Print" button on the "Print Postage" page.