- From: Chris Lilley <chris@w3.org>
- Date: Fri, 27 Aug 1999 15:34:02 +0200
- To: Fredrik Lundh <fredrik@pythonware.com>
- CC: www-svg@w3.org
Fredrik Lundh wrote:
>
> http://corp2.unisys.com/LeadStory/lzw-license.html
>
> may I suggest that the SVG spec strongly recommends
> all SVG implementors to provide PNG support.
It does rather more than that, in fact [1]:
|> The <image> element indicates that the contents of a complete
|> file should be rendered into a given rectangle within the current
|> user coordinate system. The <image> element can refer to
|> raster image files such as PNG or JPEG or to files with MIME
|> type of "image/svg". Conforming SVG viewers need to support
|> at least PNG, JPEG and SVG format files.
So, PNG support is a conformance requirement.
> (personally, I wouldn't mind if GIF support was
> to be considered as a bug, but that's me ;-)
;-)
Its not required, but it is not explicitly disallowed either. Perhaps it
should be, since even freeware is required to pay a license fee for GIF
decoding, and Web sites are required to pay a fee for hosting GIFs that
were not provably produced with licensed software [2].
[1] http://www.w3.org/TR/SVG/struct.html#ImageElement
[2] http://corp2.unisys.com/LeadStory/lzw-license.html
http://corp2.unisys.com/LeadStory/lzwfaq.html
--
Chris
Received on Friday, 27 August 1999 09:35:10 UTC