Convert GPL to MPL

Arnoud Engelfriet arnoud at
Fri Jan 18 17:43:08 UTC 2008

Marcel Ferrante wrote:
> If a open source uses GPL License and I do a fork and do many
> modifications, I can change its license to MPL, to turn the software
> a commercial open source ?

No, you can't do that. Only the copyright holders, usually the authors
of the GPL software, can change the license. This is a standard feature
of copyright law.


Arnoud Engelfriet, Dutch & European patent attorney - Speaking only for myself
Patents, copyright and IPR explained for techies:
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