[softwarelist] Re: pdf, ovation, risc oss

  • From: Martin Wuerthner <public@xxxxxxxxxxxxxxx>
  • To: davidpilling@xxxxxxxxxxxxx
  • Date: Sat, 08 Apr 2006 11:41:49 +0200

In message <TuMWHLN4YyNEFwiX@xxxxxxxxxxxxxxxxxxx>
          David Pilling <flist@xxxxxxxxxxxxxxxxxxx> wrote:
> In message <4e140c658emailing@xxxxxxxxxxxxxxxxxxxxxxxxx>
>           Peter Newble <mailing@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
>> through the RISC OS PostScript drivers. Now I need composite CMYK
>> output most of the time and it's much more difficult to achieve.
> 
> CMYK is another step. My thoughts on level 3 drivers have been that
> you'd get a lot for little effort.
> 
> I was going to say it would be too complex. It does involve applications
> being changed. But thinking about it, you only need one interface to set
> a CMYK colour.

Yes, this is really frustrating. It could have been done with 
practically zero effort 10 years ago and all applications could have 
been printing CMYK colours easily all that time.

I have heard that Cerilica once distributed a hacked PS driver that 
offered such an interface and Vantage used it to print CMYK colours to 
PostScript.

For quite some time I have been wondering why OP and ArtWorks do not 
simply inject the setcmykcolour command into PostScript themselves, in 
the same way as both apps print CMYK sprites by injecting PostScript 
code. Having a proper interface in the PS driver would be nicer of 
course and would avoid pitfalls like the PS driver being too clever 
and optimizing subsequent RGB colour changes away because the colour 
is the same as the previous RGB colour set via the official interface.

Martin
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Martin Wuerthner          MW Software          martin@xxxxxxxxxxxxxxx
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