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From "Georg Datterl" <georg.datt...@geneon.de>
Subject AW: color profiles in PNG and brighter images in PDF
Date Wed, 24 Jun 2009 10:29:04 GMT
Hi Jean-François,

Thanks for your answer. No, I don't have transparent parts. And I'm afraid I can't insert
transparent parts to darken the images.

Mit freundlichen Grüßen
 
Georg Datterl
 
------ Kontakt ------
 
Georg Datterl
 
Geneon media solutions gmbh
Gutenstetter Straße 8a
90449 Nürnberg
 
HRB Nürnberg: 17193
Geschäftsführer: Yong-Harry Steiert 

Tel.: 0911/36 78 88 - 26
Fax: 0911/36 78 88 - 20
 
www.geneon.de
 
Weitere Mitglieder der Willmy MediaGroup:
 
IRS Integrated Realization Services GmbH:    www.irs-nbg.de 
Willmy PrintMedia GmbH:                            www.willmy.de
Willmy Consult & Content GmbH:                 www.willmycc.de 
-----Ursprüngliche Nachricht-----
Von: Jean-François El Fouly [mailto:jean-francois@elfouly.fr] 
Gesendet: Dienstag, 23. Juni 2009 16:04
An: general@xmlgraphics.apache.org
Betreff: Re: color profiles in PNG and brighter images in PDF

AFAIK, color profile management is not supported by the current version of FOP.
Does your PNG contain transparent parts ?
We had about the same problem, with cockpit screenshots appearing "dull" while the original
PNG obviously had brighter colors.
It is an extremely complex topic, I spent weeks trying to find a solution to such problems
and at the end, on a suggestion by Jeremias Maerki, we simply removed the transparent parts
and that solved our problem (but maybe it does not solve yours).
I believe there is only one color profile in the PDFs generated by FOP, and IIRC the corresponding
FO tags as specified by the standard are ignored.

Le 23 juin 09 à 15:50, Georg Datterl a écrit :

> Hi everybody,
>
> I have a problem when inserting PNG files into a PDF using fop. My PNG 
> file has a color profile "Dot Gain 15%". The PDF contains the same png 
> file, but the color profile is suddenly "KODAK Grayscale Conversion - 
> Gamma 1.0". And, as is clearly visible, the image in the PDF file ist 
> brighter than the PNG. Can anybody on this list enlighten me on why 
> the color profile is changing or how I can prevent it?
>
> The PNG file and PDF file are attached, if you want to recreate the 
> PDF, here's the fo code:
>
> <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
> 	<fo:layout-master-set>
> 		<fo:simple-page-master page-height="1cm" page-width="1cm" master- 
> name="main">
> 			<fo:region-body/>
> 		</fo:simple-page-master>
> 	</fo:layout-master-set>
> 	<fo:page-sequence master-reference="main">
> 		<fo:flow flow-name="xsl-region-body">
> 			<fo:block>
> 				<fo:external-graphic content-width="1cm" content-height="1cm"  
> src="imgTest.png"/>
> 			</fo:block>
> 		</fo:flow>
> 	</fo:page-sequence>
> </fo:root>
>
> Regards,
>
> Georg Datterl
>
> ------ Kontakt ------
>
> Georg Datterl
>
> Geneon media solutions gmbh
> Gutenstetter Straße 8a
> 90449 Nürnberg
>
> HRB Nürnberg: 17193
> Geschäftsführer: Yong-Harry Steiert
>
> Tel.: 0911/36 78 88 - 26
> Fax: 0911/36 78 88 - 20
>
> www.geneon.de
>
> Weitere Mitglieder der Willmy MediaGroup:
>
> IRS Integrated Realization Services GmbH:    www.irs-nbg.de
> Willmy PrintMedia GmbH:                            www.willmy.de
> Willmy Consult & Content GmbH:                 www.willmycc.de
>
>
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