Some copyright owners voluntarily reduce the scope of what is considered infringement by employing relatively permissive, "open" licensing strategies: rather than privately negotiating license terms with individual users who must first seek out the copyright owner and ask for permission, the copyright owner publishes and distributes the work with a prepared license that anyone can use, as long as they adhere to certain conditions. This has the effect of reducing infringement – and the burden on courts – by simply permitting certain types of uses under terms that the copyright owner considers reasonable. Examples include free software licenses, like the <answer>GNU General Public License</answer> (GPL), and the Creative Commons licenses, which are predominantly applied to visual and literary works.
What is an example of a free software license?
GNU General Public License