Re: Illustrator ghosting during color convertion
Re: Illustrator ghosting during color convertion
- Subject: Re: Illustrator ghosting during color convertion
- From: Roger Breton <email@hidden>
- Date: Sat, 28 Dec 2002 13:27:51 -0500
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Hi all, I want to report a very strange behaviour of illustrator and color
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transformation, if someone of you can give us some advice, will be very
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apreciated.
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First try this: Place a PSD image with a cliping path in an RGB (or CMYK)
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illustrator document (we are trying this because we want to set up a RGB
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workflow.
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second, convert the illustrator document to PDF (RGB PDF in our case), we did
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this with many options, using save as PDF in Illustrator ,
Which version of PDF did you select: 4 or 5? If you select 5, Flattening
will be carried by Acrobat whereas if you select 4, flattening will be under
the control of Ai10 which you can set in Ai10's Document Setup >
Transparency.
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saving as EPS,
Which version of Illustrator did you choose: 10, 9, or 8 and less?
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then distilling it, and send it as postscript file with the printer driver.
You mean Printing to your Prinergy PostScript printer? Or Distiller printer?
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Once the PDF is converted, the resulting document still is in RGB. Then we
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apply the color convertion with our Pinergy ColorConvert module and the result
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is another PDF in the output color space, but the ugly thing is that the image
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and the vector graphics have been converted in many small pieces with a
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ghosting effect or a kind of transparency invading the rest of the objetcs out
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the bounds of the clipping path, wich make that document usless at least.
What you describe is the result of "flattening", indeed chopping the artwork
into small bits and pieces just like a Web page HTML table. You can control,
to some extent, this chopping using Illustrator's own Transparency settings.
Or you could experiment placing the Ai10 file into InDesign and experiment
from there. Or you could try, worst comes to wort, export out to Photoshop
from Illustrator (whathever part of the artwork that you can). I guarantee
you won't get any chopping that way. And you can then place back the
Photoshop art back in your Illustrator artwork. That way, you'll have
effectively circumvent any flattening but rendering your workflow quite
laborious. Maybe defeating the very benefit of using transparency in the
first place.
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We also change our color convert application to iQueue, and the results were
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almost the same.
Yes, that's logical as flattening has already taken place. Nothing with do
with color conversions.
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Finally we attempt to make the same process with Illustrator 9, and the
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problem was solved at least when we generate the PDF with the "save as pdf"
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option, including fonts and keeping the space in RGB.
You mean to say that the Ai19 "Flattener" resulted in a less chopped off
effect?
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We changed our color space to CMYK, and the first resulting PDF was fine, but
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when we convert from CMYK to CMYK, the problem came out as in the RGB workflow
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with the iQueue and Prinergy engines.
So you say you never have any problem as long as you keep the Document Setup
in CMYK in Illustrator? Could you send me a sample converted document
off-list?
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Saul Arana
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Lima Peru
Roger Breton
Laval, Canada
email@hidden
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