[scribus] Black is not black
avox at arcor.de
Sat Nov 29 12:51:49 CET 2008
> Pedrie Roberts-2 wrote:
>> When I export from Scribus (whether as PDF or image format - tested it
>> as PNG) it seems that the program does not export black as 100% black,
>> but rather as about 90% black. Some of my work I actually had to
>> reopen in Gimp and paint the black black but, of course, this is not
>> possible for a PDF and we use mainly PDFs. Is there some setting I
>> have to change when exporting, or is it a bug in the program?
>> Help appreciated.
> This should be in the the FAQ.
> 100% black in the CMYK color space is not 100% in the RGB colorspace.
> CMYK knows some blacks "blacker", which also have a C, M and Y
> component in it. So CMYK (100, 100, 100, 100) would be mapped to
> RGB black, but the normal CMYK black (0, 0, 0, 100) is not.
I forgot a warning:
KIDS! If you do create a CMYK (100%, 100%, 100%, 100%) black that at home,
never NEVER give that to the big boys at the print shop! Putting that much
ink on paper will make it soaking wet and the big boys are going to shout at
you. Print shops usually define an upper limit for all inks around 200% -
> So if you export to RGB (all PNG are RGB and PDF if you export for
> you should not use Scribus' std black, which is CMYK (0, 0, 0, 100), but
> your own RGB black as (0,0,0).
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