Royalty Free

Most of the agencies listed on Microstock Forum have over 1 million images each, some with almost ten million images. All of these images are available with a Royalty-Free license. This license allows you to use print more postcards without going back and paying more money. You should read the license details on each website that you buy or sell stock photos with. Many agencies have a standard license which covers most uses and then an extended license to cover optional uses (often use on products or higher copy limits).