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I'm new to WordPress and I have a question about license.

Can I use a GPL 2 Theme (downloaded from http://wordpress.org/extend/themes/) as a framework for Commercial Theme?

I searched and I found that Yes as long I keep the same License, but what are the changes I can make?

Can I modify the Author.... Name ... from style.css? What are the credits I have to add?

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1 Answer 1

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Short answer:

You may change everything as long as you keep the same license.

No credit is actually required.

But it is polite. I would add it in the stylesheet under the notes section with a link back to the original.


Provide the original author and link to the source.

Something like "Based on the original work of John Doe: http://www.johndoe.com/myawesomecode"

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Only the link back? or other like credit to, forked... correct me if I'm wrong. Thanks –  wpmika Nov 10 '11 at 7:28
    
You can modify the code in any way you want, and you can distribute it, even commercially, provided that you retain the original license. You are not required to retain any sort of public-facing link. As for copyright attribution: you absolutely need to retain the original copyright notice. The usual location for this attribution is in the style.css header docblock. Indicate your own copyright attribution and license, and then note that the work is derived from another work, and retain (or add) the original work's copyright attribution and license. –  Chip Bennett Nov 10 '11 at 20:15
    
^ What he said. –  Sterling Hamilton Nov 10 '11 at 21:05

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