El Sun, 31 May 2009 21:36:53 +0200 "H.Lekin" <h.lekin@...961...> escribió:
Hi,
I started using Inkscape 6 weeks ago. I went to a print shop to get a color drawing - exported as PNG - printed. On this print, a blue gradient fill turned into a blue to dirty-green fill.
Do you have to transform color space afore?
How do you usually do this?
Convert PNG to TIF, transform RGB to CMYK with embeddedprofile?
I usually do that
Make a PDF/X-3 via Scribus?
and that too
If via SVG import, how do you handle tranparency?
previously I transform transparency to solid colors in inkscape, import svg in scribus, tranform the RGB colors to CMYK colors in scribus with the right profile, and export to PDF
or export to RGB png -> tranform RGB png to CMYK tif whit imagemagik or gimp separate+ -> import on scribus and export pdf
What standard color profile do you use,
the icc profile related the printing system you are going to use
here, in southamerica 'euroscale' is the color standart for offset printing
if you transform all your colors to CMYK model with the correct profile, you dont need embebbed it (CMYK: 10/20/30/40 prints C:10 M:20 Y:30 K:40 !, and you can see in any color printed catalog that looks like color)
you need icc profile (monitor RGB profile and printer CMYK profile) to preview in inkscape *approximately* (but very close)[1], how the colors will be on the paper, and to transform colors RGB to CMYK in imagemagick, separe+ or scribus
[1] as in any design software, if you want to see exactly how this color looks you need a printed catalog (like PANTONE process color)
if you don't know exactly on which machine you are going to print?
this is not a inkscape issue, is a general printing issue
there are two paradigms: prepare your work for a specific printing system (all colors in CMYK, and not need submit profile), or delegate to the printing house the color management, in this case you can submit your work as RGB, and attach or indicate wath icc profiles you have used
usually, the first paradigm is the most common
Or was this color shift just caused by a misconfiguration of Photoshop in the print shop?
is not a misconfiguration, probably a different icc profile configuration, copy the CMYK icc profiles, from the print shop to your /usr/share/color/profile
Thanks in advance for your help.
HL
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