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Article #14

Re: Transparency problems when using a spot color

#14
From: Mike White
Date: Thu, 11 Jan 2007 22:23
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In article <3bc238ab.0@webcrossing.la2eafNXanI>,
 Kenneth_Lasley@adobeforums.com wrote:

> It is a known problem. Covert the spot color to process.

Thought I'd share this trick:

Working with that pesky transparency - especially in Indesign.

Problem: Ripped files have vector art that is rasterizing and looking 
jaggy.

This technique works with spot colors and should work with CMYK files.

Programs needed: Indesign CS2, Acrobat 7.0 (maybe), Illustrator CS2.

Took me a long time to figure this out, there might be a solution like 
this on Adobe's web site, but I haven't found it.

Basically, what you want to do is make a pdf file (preserving the 
transparent effects from the Indesign file so you can manipulate it in 
Illustrator. After it's manipulated, you can save it from illustrator as 
an .eps file and import it into Quark or whatever, for final output 
files.

The trick is to manually manipulate the elements that are causing 
problems (transparency) in Illustrator. You can't do this in Indesign, 
even though the program works similar to Illustrator.

So here are the steps:

Save the problem file from Indesign as a PDF file - save it so it will 
only open in Acrobat 7.0. This will keep the document from "flattening" 
which is where the problem is happening.

1) Open the file in Illustrator CS. you might get some weird message 
about "unknown shading type encountered", but it doesn't seem to matter.
2) Make a new layer in Illustrator call it Transparent Layer
3) Go window/flattener preview/highlite "transparent objects" You will 
see the areas that need work.
4) Move those indicated transparent objects to your new layer. (Make 
sure you get all the bits and pieces.
5) Turn off the Layer 1, so the only layer you have visible is 
"Transparent Layer", and it's the only layer you are working on.
6) Select everything on "transparent layer" and go to the menu at the 
top of your screen: Object/Flatten Transparency.  It should be set on 
the highest resolution.
7) Turn on all your layers and verify that the problem areas are 
flattened by going back to: Window/flattener preview/highlite 
"transparent objects" (It should all be grayed out.)
8) Go ahead and flatten your artwork layers that you made (you know, 
Layer 1 and the Transparent Layer) so you have one artwork layer.

9) Save the file as an eps and place it in Quark/Indesign or whatever. 
You should be good to go!

All you are doing by this technique is selectively flattening areas that 
YOU determine need flattening. Indesign should build this functionality 
into the program.
I have found it works perfectly!
Technical Details
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From: Mike White <whitech@prodigy.net>
Newsgroups: adobe.indesign.serviceprovider
Subject: Re: Transparency problems when using a spot color
References: <3bc238ab.-1@webcrossing.la2eafNXanI> <3bc238ab.0@webcrossing.la2eafNXanI>
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Date: Thu, 11 Jan 2007 22:23:17 GMT