The EULA (end user licence agreement) covers the licence details for the usage of royalty free images. The buyer of royalty free images and photo CD-roms is granted the right to use the images in certain ways. The royalty free images can be used by the buyer mostly without limitations, but there are a few exceptions to be noted.

The licence agreements of the various royalty free producers define how the images may be used and inform in detail about the exceptions to be noted. Please study the EULA of the corresponding photo collection of images you wish to buy: