{"id":20263,"date":"2020-01-30T08:28:36","date_gmt":"2020-01-30T08:28:36","guid":{"rendered":"https:\/\/www.arimetrics.com\/glosario-digital\/copyleft"},"modified":"2026-08-27T21:40:19","modified_gmt":"2026-08-27T21:40:19","slug":"copyleft","status":"publish","type":"encyclopedia","link":"https:\/\/www.arimetrics.com\/en\/digital-glossary\/copyleft","title":{"rendered":"Copyleft"},"content":{"rendered":"<p><img decoding=\"async\" class=\"boxpad alignright wp-image-14115 size-full\" src=\"https:\/\/www.arimetrics.com\/wp-content\/uploads\/2020\/01\/copyleft-1.jpg\" alt=\"Copyleft\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.arimetrics.com\/wp-content\/uploads\/2020\/01\/copyleft-1.jpg 300w, https:\/\/www.arimetrics.com\/wp-content\/uploads\/2020\/01\/copyleft-1-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong>Definition:<\/strong><\/p>\n<p><em> <strong>Copyleft<\/strong> <\/em>is a creation license that consists of releasing a computer program, a work of art or any other type of document for copying, modification and redistribution. It is a legal practice that is carried out in the exercise of copyright. To call it his uses a play on words, since copyleft is the contrast of copyright, whose meaning in English is &#8216;copyright&#8217;. In this case, the terms &#8216;left&#8217; and &#8216;right&#8217; are used, but also the participle of leave (lefy), translated as &#8216;left&#8217;.<\/p>\n<p>The Copyleft Foundation defines these licenses as &#8220;those that allow greater control of creators over their works, research and projects and a more reasonable compensatory remuneration for their work, also allow end users better access and enjoyment of goods under this type of non-restrictive licenses.&#8221;<\/p>\n<p>In short, copyleft licenses are authorized by the author of the work himself so that they can <strong>be used and modified by a large number of users.<\/strong> They are the main example of free licenses, which does not necessarily equate to them being free.<\/p>\n\n<h2>Origin of Copyleft<\/h2>\n<p>Its origin is in the <strong>GNU General Public License (GPL) created by Richard Stallman<\/strong> in the eighties, after a conflict over the rights of a software. Its philosophy is to release computer programs for successive modifications, but it makes it clear that they must carry a copyleft license so that the one who has made the changes cannot limit access to the rest of the users to the new version.<\/p>\n<p>It is represented with a symbol inverse to that of copyright, which in plain text translates into an inverted c and in parentheses &#8220;(\u0254)&#8221;.<\/p>\n<p><em> <strong>Copyleft<\/strong> <\/em>is a creation license that consists of releasing a computer program, a work of art or any other type of document for copying, modification and redistribution. It is a legal practice that is carried out in the exercise of copyright. To call it his uses a play on words, since copyleft is the contrast of copyright, whose meaning in English is &#8216;copyright&#8217;. In this case, the terms &#8216;left&#8217; and &#8216;right&#8217; are used, but also the participle of leave (lefy), translated as &#8216;left&#8217;.<\/p>\n<h2>Copyleft Foundation<\/h2>\n<p>The Copyleft Foundation defines these licenses as &#8220;those that allow greater control of creators over their works, research and projects and a more reasonable compensatory remuneration for their work, also allow end users better access and enjoyment of goods under this type of non-restrictive licenses.&#8221;<\/p>\n<p>In short, copyleft licenses are authorized by the author of the work himself so that they can <strong>be used and modified by a large number of users.<\/strong> They are the main example of free licenses, which does not necessarily equate to them being free.<\/p>\n<p>Its origin is in the <strong>GNU General Public License (GPL) created by Richard Stallman<\/strong> in the eighties, after a conflict over the rights of a software. Its philosophy is to release computer programs for successive modifications, but it makes it clear that they must carry a copyleft license so that the one who has made the changes cannot limit access to the rest of the users to the new version.<\/p>\n<p>It is represented with a symbol inverse to that of <a href=\"https:\/\/www.arimetrics.com\/en\/digital-glossary\/copyright\">copyright<\/a>, which in plain text translates into an inverted c and in parentheses &#8220;(\u0254)&#8221;.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Definition: Copyleft is a creation license that consists of releasing a computer program, a work of art or any other type of document for copying, modification and redistribution. It is a legal practice that is carried out in the exercise of copyright. To call it his uses a play on words, since copyleft is the [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"template":"","encyclopedia-tag":[1002,1279],"class_list":["post-20263","encyclopedia","type-encyclopedia","status-publish","hentry","encyclopedia-tag-copyleft","encyclopedia-tag-software-licensing"],"_links":{"self":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/encyclopedia\/20263","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/encyclopedia"}],"about":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/types\/encyclopedia"}],"author":[{"embeddable":true,"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/users\/6"}],"wp:attachment":[{"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/media?parent=20263"}],"wp:term":[{"taxonomy":"encyclopedia-tag","embeddable":true,"href":"https:\/\/www.arimetrics.com\/en\/wp-json\/wp\/v2\/encyclopedia-tag?post=20263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}