The term copyleft is used mostly in open source projects. It has to do with software licensing, which has created an inevitable uproar of discussions amongst text editors and authors of books. Before the concept of copyleft is introduced, we must discuss the concept of copyright as copyleft properly is still under the same legal framework as copyright, and they exist under the same rules. The exact concept of copyright differs amongst different jurisdictions, but the overriding accepted concept is that it (copyright) attaches itself to work done by an author. In a copyright agreement, no registration is required. This means the author can perform, modify and republish his work without permission anyone. The permission is a license that comes with a few terms and conditions that must be adhered to. Before we dive fully into the concept of copyleft, we first have to examine the meaning of “open source.” Open source license refers to licenses that allow for software and its information to be easily modified and shared. They also allow for easy access without permission for data on an open source to be used based on predefined terms and conditions.
Finally, to the definition of copyleft, it is referred to as the rule that when redistributing a program, you cannot deny other people the freedom of access to the software by adding more restrictions to the software. Copyleft is different from copyright in the sense that it offers people the right to distribute freely modified copies of work within the stipulated same rights preserved in the original work. It is also referred to as a protective or reciprocal, permissive free software license. Copyleft is a concept of licensing that maintains copyright conditions for projects ranging from art, documents, computer software and scientific discoveries. In copyleft, the author gives all the access to his rights under copyright law. However, it allows him to impose few restrictions on activities; he considers being exclusively reserved by him. The underlying concept under copyleft is that people benefit from the work of others, but modifications must be released publicly under specific terms. Copyleft software, beyond individual creators, has a lot of economic effects, and this has forced commercial producers to increase further the quality of their products, which competes with free software.