Question about the copyright


I’m wondering it’s legal or not if I copy source code from Vaadin’s repository and modify them for commercial use. Do I have to keep the license notice at the beginning of each source file or not?

Please help!

Many Thanks,

Yes, you can modify code for commercial use, but you have to follow licenses. There are lots of code in our repository - not just the core framework (which is licensed under Apache), but also other components with various licenses. In any case, you have to follow the license.

Yes, you have to keep the license notice. For the core framework, see the
Apache license

Hi Joonas,

Thank you for your answer. I’ve got it :slight_smile: