Proposed "XML:com.adobe.xmp" PNG keyword

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Proposed "XML:com.adobe.xmp" PNG keyword

by Glenn Randers-Pehrson :: Rate this Message:

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On Thu, Oct 8, 2009 at 11:54 PM, Cosmin Truta <cosmin@...> wrote:

>  Re: [png-mng-misc] PNG and XMP already a way to consider storing metadata?
>  It is proposed to register the following new text keyword for
>  use in PNG files:
>
>  XML:com.adobe.xmp
>  Extensible Metadata Platform (XMP) information, formatted
>  as required by the XMP specification [XMP].  The use of iTXt,
>  with Compression Flag set to 0, and both Language Tag and
>  Translated Keyword set to the null string, are recommended
>  for XMP compliance.
>
>  References
>  [XMP]
>     Adobe Systems Inc., "XMP Specification", September 2005.
>     http://www.adobe.com/devnet/xmp/

Looks good to me.  Let's get libpng-1.4.0 out before voting on
this, though, because the current libpng does not support
iTXt by default, and you cannot even enable it without
manually editing pngconf.h.

I'll publish libpng-1.4.0rc01 very shortly, maybe later on
this week.

Glenn

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