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In ArcMap’s user interface, there is no way to know whether a color is a CMYK color. The colors of symbols must be set to CMYK in order to preserve those values in the exported AI file.There are several basic tips in ArcMap that will help you set the correct color values for export: Setting the proper color values in ArcMap will help minimize the amount of time needed to adjust color values in AI or any other graphics software. Since the majority of print production workflows rely on using four process colors (cyan, magenta, yellow and black – CMYK), it is important to set them up correctly. It is currently being tested in CS3 with good initial results.
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The ArcMap AI exporter has been fully tested to work in Adobe Illustrator CS and CS2. This export format was first made available in ArcGIS 8.1 Service Pack 1 and has been popular ever since. One of ArcMap’s more popular export formats is the Adobe Illustrator (AI) export because of its wide compatibility with a number of graphics software packages. For many GIS users and cartographers, the use of external graphics software is a common step in his or her workflow and production of print quality maps.
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