Colour question

[Dov Isaacs]

Lester is right! And also be aware that NO, repeat NO,
repeat yet again NO Windows driver, whether PostScript
or otherwise, can accept CMYK from applications, except
for EPS passthrough with the PostScript driver, since
the Windows imaging model is totally RGB. Drivers can
output CMYK (as the PostScript driver does), but since
the input to the driver is GDI and GDI is totally RGB,
in general, an application program cannot communicate
CMYK directly to a print driver. This includes FrameMaker,
with the exception of EPS passthrough.

	- Dov 

> -----Original Message-----
> From: lists.frameusers.com On Behalf Of Lester C. Smalley
> Sent: Friday, June 09, 2006 1:55 PM
> Subject: RE: Colour question
> 
> As has been repeated in this forum, time and time again, if 
> you are 'printing' to PDF you should be using the Acrobat 
> Distiller print driver, and not the drivers for any specific 
> real or generic device.
> This should show up in your system (Windows) as the "Adobe 
> PDF" or "Acrobat Distiller" (if you have an older version of 
> Acrobat) printer.
> 
> While you may not have any immediate problems, there is the 
> strong possibility that the resulting PDF will not be 
> compatible for all devices, or suffer from other problems 
> which will rear their ugly heads at the most inopportune 
> times such as 15 minutes before a critical deadline.....
> 
> And I am not convinced that the printer drivers in Windows 
> use CMYK - they may, but they may also just use RGB which is 
> what the Windows GDI (Graphic Device Interface) uses as it's 
> default color space.
> 
> On Friday, June 09, 2006 03:09 PM, Daniel Doornbos wrote:
> 
> < SNIP >
> 
> | When you print to PDF, you use a printer driver, either a specific
color
> | laser printer or a generic driver. These drivers use CMYK color as
well,
> | so again, you are left with an approximation.
> 
> - Lester
>