Licensing conditions range from easy and clear to complicated and opaque and depend to a large extent upon the provider. For that reason, it's advisable to read the fine print. A few standard license types are recognizable: RF-License: Royalty-free licenses are tied to the user. Users pay a one-time fee and are allowed to use the media without any time or other constraints as often as they like for as many projects as desired. Owing to the lack of limitations, people often speak of such media as being "license-free." However, this doesn't pertain to re-sale or transferring the rights to someone (or something) else. For that reason, it's important to pay close attention to the licensing conditions. RM-License: Right-managed licenses are project-bound, expensive licenses. The individual interested in the image must specify what and for which purposes they intend to use the image. Ultimately, the price depends upon criteria such as how many copies will be made of the image, how long the image will be used for, or where it will be used. Creative-Commons-License: Creative Commons (CC), a non-profit, has issued six, standardized licenses with which creators can indicate (by icon or abbreviation) how their work may be used by third parties. Public domain or free license: Should media no longer enjoy copyright protection, for example, if this has expired, they are now in the public domain. These files can be used by anyone for anything. This also applies to media that is labeled by its creator as being in the public domain.