[Scribus] Black becomes lighter when exported to PDF
Sat Aug 25 21:23:51 CEST 2007
Craig Ringer <craig at ...> writes:
> Marcin Szafran wrote:
> >> How can I fix this?
> > check your colour profiles - ... also check if
> > your black is cmyk black (c0 m0 y0 k100) and not rgb.
> Using the relative colorimetric rendering intent with black-point
> compensation, RGB (255,255,255) should end up as a CMYK black...
> Craig Ringer
It turns out that if I choose Output Intended for Screen/Web in PDF
Export, then the PDF looks like the Scribus document. When I choose
"Printer", all the colours (not just black) become slightly washed out,
as if I had reduced the opacity. It prints that way on my
black-and-white laser printer as well.
1) Does it really matter whether I choose "Screen" or "Printer"?
2) Does it really matter whether I use RGB or CMYK? I am using a few
Red RGB(255,0,0) or CMYK (0,100,100,0)
Black RGB(0,0,0) or CMYK(0,0,0,100)
plus colours in an imported SVG file.
That is, I have two test documents: one that uses only RGB and one that
uses only CMYK.
Scribus says that I am also using "White", but I cannot see where. After
I removed unused colours, "White" remained, but I have not coloured
anything white as far as I can tell.
The PDF looks the same whichever format is used.
Would it be OK to send one of my test .sla files? If yes, which one
should I send?
I don't know anything about colour profiles and things like that. I am
just manipulating objects on the screen until I like what I see, so I
could be making a very simple mistake somewhere.
I recently upgraded from Ghostscript 8.57 (which I was using when I
started designing the sign) to 8.60, but it did not help.
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