How is it Possible to Resell Somebody Else’s Theme or Plugin?
This might be the most controversial Internet marketing lesson that you have ever purchased. Some will
say that it is pure genius and have an ah-ha moment, while others will say these money making methods
I can sum up this entire lesson by simply saying: You have the right to sell almost any WordPress Plugin
or theme, regardless of what the developer says.
You are probably wondering how you can legally do this. It’s simple, the WordPress code is licensed
under the GNU General Public License (GPL), a free software license that allows anyone the freedom to
distribute, modify, and use the code.
Many people attribute the huge popularity of WordPress to the fact that its open source code allows for
community contributions. These contributions come in the form of themes and plugins. Since these
contributions rely on a program that is licensed under the GPL, they too fall under the same rules.
This is spelled out in this paragraph of the GPL:
You must cause any work that you distribute or publish, that in whole or in part contains or is derived
from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under
the terms of this License.
This translates to say that whenever any software (plugins and themes in this case) uses a single
function from the WordPress code, the GPL takes over as the governing license.