[NTLUG:Discuss] Re: [svlug] EVENT: Burn All GIFs Day.

[Chris Cox]

The good news is there are other LZ (not LZW) derivatives which are as good
if not better than LZW and therefore don't come under this copyright.
Gzip comes to mind.

Compress uses LZ....I don't think it uses LZW (?).

Regards,
Chris


Jeff Rush wrote:
> 
> Actually, the issue is more serious that most think.  The paragraph
> from the Unisys page:
> 
> >Currently applicable information as to Unisys licensing policies for products using LZW
> >(GIF, TIFF-LZW, PostScript, Portable Document Format (PDF), V.42bis, etc.) can be
> >obtained by contacting the following:
> 
> Sooo, lose the Python PIL (image processing module), many graphics
> libraries for Linux (Gnome?), Ghostscript, various PDF readers/writers
> such as the libraries in Gnome for displaying PDF, the Python extension
> module for writing PDFs -and- any of several compressing PPP modules
> including the ISDN4Linux v.42bis one that is already in the Linux kernel...
> I imagine there are Perl equivalents to the Python modules I mention
> that I'm unware of.
> 
> Talk about a tangled web...
> 
> -Jeff Rush
> 
> On Sat, 28 Aug 1999 17:30:44 -0700 (PDT), George Bonser wrote:
> 
> >On Sat, 28 Aug 1999, J. Reeves Hall wrote:
> >
> >>
> >> Wasn't PNG created for just this purpose?
> >
> >Also, I do not think the issue is .gif format, it is the compression. The
> >same rules would apply with anyone supplying .Z compressed files in their
> >site.
> 
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