[Openicc] Call for help: Review of CM patches for Poppler needed

[Michael Vrhel]

Till,

I am disappointed to hear about this.   It would be nice to get feedback 
from you about the PS generated from Ghostscript that is a problem on 
"buggy" printers.   Have you opened any bugs in Ghoscript's bug database 
with respect to this issue?

Michael Vrhel




-----Original Message----- 
From: Till Kamppeter
Sent: Wednesday, March 06, 2013 10:55 AM
To: OpenICC Liste
Cc: Albert Astals Cid
Subject: [Openicc] Call for help: Review of CM patches for Poppler needed

Hi,

yesterday and today the first virtual Ubuntu Developer Summit (UDS) has
taken place. Today I have held a session about the Ubuntu printing stack
with mobile in mind:


Session page with video of the session:

http://summit.ubuntu.com/uds-1303/meeting/21685/client-1303-printing-stack-with-mobile-in-mind/

Relevant discussion starting around minute 31:00.

Blueprint:

https://blueprints.launchpad.net/ubuntu/+spec/client-1303-printing-stack-with-mobile-in-mind


One of the points is to use Poppler and not Ghostscript as RIP, as
Poppler is already there for the PDF screen viewer, none of the mobile
apps sends jobs in PostScript, and Poppler produces a PostScript which
is much more reliable on buggy PS printers than the PostScript coming
out of Ghostscript.

The latter reason makes me also thinking to use Poppler for the pdftops
filter on the desktop.

The only problem is that the Color Management support of Poppler is
inferior to the color management of Ghostscript.

Albert Astals Cid mentioned during the session that there are color
management patches available for Poppler but as there are no CM experts
under the Poppler developers the patches did not get reviewed.

So I want to ask the color management experts here on the list whether
they could review the patches and help to get Poppler on par with
Ghostscript in terms of color management soon.

Albert, can probably give you the links to the patches and related
feature requests/bug reports.

Thank you in advance for your cooperation.

   Till
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