Export to PDF wiith CMYK

users
#1

All,

I'm doing a Christmas card in LO Draw (I created the templates a few
years ago, easy to use...). The print shop that I normally use says
that you can use RGB, which is the normal PDF export, but CMYK is much
better. So I'm looking for a simple, straight forward way of doing this
that runs under Linux. Any suggestions?

I'm told that Scribus can import LO files, and do CMYK, but I'm in a
time crunch and really don't want to have to learn a new program.

Thanks,
Dave

#2

Hello Dave,

AFAIK, cmyk involves a certain patent, and isn't widely available in
opensource projects like LO. I suggest you export your drawing to .png
or .jpg, and the printshop should be able to handle that, as otherwise
they can't handle any incoming picture.

In the latter case, I'd consider to change from printshop instead :wink:

Met vriendelijke groeten, Salutations distinguées, Kind Regards,

DRIES FEYS
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TVH GROUP NV
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#3

Hi :slight_smile:
Err, they might be able to handle the Odg file too.

They probably can't right now but they might - so it might be worth sending
"the original" Odg too, along with the Pdf. If they get more and more
people giving them Odg then they are more likely to install programs that
can use it, such as LibreOffice or OpenOffice. So i tend to think it's
good to give people the file in both formats and let them use whichever
they prefer.
Regards from
Tom :slight_smile:

#4

Hi :slight_smile:
I suspect that cmyk is only marginally better. Good to use if it's easy
but in this case it isn't so don't. Image editing programs such as Gimp,
Inkscape, stuff like that make it easy - but then you would be exporting
from LO in RGB anyway. So the gains you could make would probably be
off-set by all the conversions

Of course LO does give you the massive advantage of being able to do Pdfs
that have no compression, or using a lossless compression very easily. MS
Office tends to use a very lossy format that makes things a bit blurry.

There is another way of creating Pdfs using "print to file" that might be
better for retaining your fonts but i think that tends to be fairly
lossless too, with LO.

Regards from
Tom :slight_smile:

#5

Here are some suggestions.
http://namakutux.blogspot.co.nz/2012/03/how-to-print-with-cmyk-color-profile-in.html
http://makandracards.com/makandra/1489-convert-the-colorspace-of-a-pdf-from-rgb-to-cmyk-under-ubuntu-linux

And I found this

EDIT: I have just discovered, that if I create an .odp presentation in OpenOffice, and export it to PDF; that PDF will by default be RGB, however, the following command (from ghostscript Examples | Production Monkeys <http://www.productionmonkeys.net/guides/ghostscript/examples>):

# Color PDF to CMYK:

gs -dSAFER -dBATCH -dNOPAUSE -dNOCACHE -sDEVICE=pdfwrite \
-sColorConversionStrategy=CMYK -dProcessColorModel=/DeviceCMYK \
-sOutputFile=output.pdf input.pdf

... actually will produce a CMYK pdf, reported as such by |identify| (although, the black will be rich, not plain - on all four channels); however, this command will work /only/ when the slide has an added image (apparently, it is the one triggering the color conversion?!)! Funnily, I cannot get the same effect from a |pdflatex| PDF.

Here http://stackoverflow.com/questions/6241282/converting-pdf-to-cmyk-with-identify-recognizing-cmyk

steve

#6

Dries ,Dave

All (mostly) printschops can convert any RGB pdf to there own CMYK standard's

Greetz

Fernand