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Re: Attribution-ShareAlike License

David B Harris writes:

> However, I'm not one who believes that just because a file format only
> has non-Free editor implementations that the file format itself is
> non-Free. There are many ways one can edit PDFs with Free tools, but
> this is beside the point for me. It's not (to my knowledge)
> patent-encumbered, and Adobe hasn't (to my knowledge) attempted to stop
> anybody who has written those tools that manipulate PDFs.

Adobe has patents which it claims apply to PDF and has licensed them only
for the purpose of creating compatible implementations.


If you modified an application which implements PDF so that it was
incompatible with Adobe's specifications, you might be outside the
scope of Adobe's patent license grant.

Seth David Schoen <schoen@loyalty.org> | Very frankly, I am opposed to people
     http://www.loyalty.org/~schoen/   | being programmed by others.
     http://vitanuova.loyalty.org/     |     -- Fred Rogers (1928-2003),
                                       |        464 U.S. 417, 445 (1984)

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