[pdftex] xpdf (was: [Gs-devel] Re: [gnu@toad.com: Re: EFF place holder page for when we have PDF rather than HTML])

[Richard Stallman]

    There are a number of other patents that one would run into if one
    were doing a feature-for-feature clone of Acrobat Reader, including a
    number of tricks used in rendering PDF files downloaded incrementally
    from the Web. The current technique of downloading the entire PDF file
    before launcing the viewer avoids this class of patents, even if it
    increases the latency a few seconds.

Does this patent cover the reader or only the program that produces
the file?