[jdev] wiki.xmpp.org

[Kurt Zeilenga]

On Dec 22, 2009, at 10:57 AM, David Ammouial wrote:

> On Tuesday 22 December 2009 09:55:57 Peter Saint-Andre wrote:
>>> So, you change the license without asking all the content authors out
>>> there? ;-)
>> 
>> It was in the public domain. They didn't have any rights. ;-)
> 
> Do you mean it's possible to take a public-domain work and re-license it 
> according to your will?

No.

But you can incorporate PD material in licensed work without restriction.  While the combined work might well be subject to other licenses, a work once placed in the public domain is always forever in the public domain.   That is, you can (at least in theory) extract the public domain work from the combined work and use it without restriction.  Of course, in practice, extracting such works from a combined work can be quite difficult.

-- Kurt

> 
> -- 
> David
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