How Do I Use Copyleft?
“To copyleft a program, we first state that it is copyrighted; then we add distribution terms, which are a legal instrument that gives everyone the rights to use, modify, and redistribute the program's code, or any program derived from it, but only if the distribution terms are unchanged.
Is copyleft only for software?
The GNU GPL states that it “applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License,” so this “Program,” then, may not necessarily be a computer software program—any work of any nature that can be copyrighted ...
Applying Copyleft To Non-Software Information - GNU Project
Copyleft is a term used primarily when discussing licensing for Open Source Code usage. It is a method for making a program, code, or another piece of work free as well as any subsequent versions or modifications to that program.
Copyleft in Software Development - Explanation & Risks | CAST
What is copyleft example?
Copyleft is a term, usually referring to a license, used to indicate that such license requires that redistribution of said work is subject to the same license as the original. Examples of copyleft licenses are the GNU GPL (for software) and the Creative Commons SA (Share Alike) licenses (for works of art).
Copyleft - MDN Web Docs Glossary: Definitions of Web-related terms
What is open-source copyleft?
What is an Open Source Copyleft License? According to the GNU, the founding fathers of the copyleft open source license, copyleft is a method for making a software program free, while requiring that all modified and extended versions of the program also be free, and released under the same terms and conditions.
Open Source Copyleft Licenses: All You Need to Know