Re: [xsl] Transparent Images

Subject: Re: [xsl] Transparent Images
From: "Mark Williams" <mark@xxxxxxxxxxx>
Date: Wed, 25 Feb 2004 09:48:51 -0000
Thanks for the reply.  I'll try out gif instead of png and see if this
overcomes problem.



----- Original Message -----
From: "J.Pietschmann" <j3322ptm@xxxxxxxx>
To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Tuesday, February 24, 2004 10:09 PM
Subject: Re: [xsl] Transparent Images

> Mark Williams wrote:
> > I don't know if this is an xsl problem or a fop problem.  What I am
> > trying to establish is what should be the default xsl behaviour for a
> > transparent png in this context.  Should the grey background underneath
> > through the transparent sections of the png?
> XSLFO doesn't go into much of a detail when it comes to handling
> external graphics. Basically, it states "processor specific".
> Well, PDF can handle transparent PNG, and I thought Jimi (used
> by FOP) is able to transform PNG with alpha channel into the
> corresponding PDF data. You might have hit a PNG subformat which
> isn't supported by Jimi (it's old), or a bug. Try converting
> the PNG into a GIF first and see whether it works, or into
> another PNG subformat (preferably 16 bit color).
> J.Pietschmann
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