[Openicc] Printing Plans GhostScript / sRGB / ICC

[Jan-Peter Homann]

Hello Kai Uwe and all,
If we want to use PDF as print spool format containing all necessary 
informations containing the colormanagement for the PDFtoRaster incl. 
the "No Colormanagement Option", it should be done from my perspective 
as follows:

If we want the "No Colormanagement Option" we need simply a DeviceXXX 
PDF matching the general Space (RGB or CMYK) of the printer.

If we want to tell PDFtoRaster an "sRGB to printerSettingABC 
transformation, we have to use a PDFtoPDF filter first, in the case that 
the printing application can only create DeviceRGB sprintspool PDF files.

The PDFtoPDF filter will change all DeviceRGB to ICCbasedRGB for every 
PDF object, embedd sRGB-profile in every object, set the rendering 
intent for every PDF object to perceptual and integrate the profile 
PrinterSettingABC.icc as Output intent.

Now we are 100% conform to the ISO standard.


The question is, if this workflow is smart, if we can reach the same 
goal by e.g. scripting GhostScript to use the default input profile sRGB 
and the as target profile PrinterSettingABC.

If we are able to script GhostScript to configuire a target profile, we 
are also able to script GhostScript not to use any profile.

The direct setup of GhostScript has also the advantage that it could be 
used both for PostScript and DeviceXXX PDF files.

Best regards
Jan-Peter
>
>>  I don´t see any need to integrate a "color management of flag" 
>> directly into DeviceXXX PDF files.
>
> It is not to be integrated. The standard is already existing. We have 
> few choice to ignore that if the print system shall conform to.
>
>> best regards
>> Jan-Peter
>
> kind regards
> Kai-Uwe Behrmann


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