[Openicc] What is exactly needed: Embedded Profile in CUPS raster !!

Michael Sweet msweet at apple.com
Thu Jun 2 15:46:18 PDT 2011

On Jun 2, 2011, at 2:58 PM, Hal V. Engel wrote:

> On Thursday, June 02, 2011 01:59:42 PM Michael Sweet wrote:
> > On Jun 2, 2011, at 1:07 AM, Alastair M. Robinson wrote:
> > > Hi,
> snip
> > Automatic profile selection works just fine for the settings ordinary users
> > are likely to tweak, primarily color mode, media type, and print
> > quality/resolution (thus the defaults used for cupsICCProfile). 
> For nave users having a set of vendor supplied profiles configured in the PPD that are automatically selected will work.  But this runs into a wall when someone with CM expertise is trying to setup a custom CM solution that is usable by other users.  PPD files are intended for vendor supplied configuration and are not well suited for supplying customized/local functionality because of their static nature and the fact that the customizations are very easy to lose during system upgrades.  

I would argue that any driver/PPD updates need to preserve the local profile additions just as they preserve the state of installable option choices.

Moreover, once you add a printer the PPD associated with the queue reflects the local configuration of the printer and not the original vendor defaults. Putting the profile associations in the PPD file is one valid approach to the issue and ultimately will allow the profiles to be shared via CUPS along with the PPDs (but that work remains to be done…)

> ...
> Again this requires making custom modifications to the PPD file which is something I think should be avoided.


Michael Sweet, Senior Printing System Engineer, PWG Chair

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