License Agreement

A license agreement is a legal agreement granting permission to exercise a specified right or rights to a work, often encompassed in an invoice. A license agreement is typically produced by the creator, agency, or stock photography source and signed by the licensee. A license agreement should be written, though an oral license may be enforceable if it qualifies as a contract under the principles of contract law. (Source: Picture Licensing Glossary)

For more copyright definitions and resources, check out Copyright 101: A Glossary for Marketers