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I have been sent a collection of PNG and SVG images with which I should symbolize my points in ArcGIS 10.0. Unfortunately ArcGIS 10.0 doesn´t support PNG when symbolizing points, so I have converted them to EMF files. The background transparency of the images are now lost and are displayed black. How can I make the background of these emf images transparent in ArcGIS?

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marked as duplicate by PolyGeo, Chad Cooper, Simbamangu, mkennedy, whuber Mar 17 at 20:29

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1 Answer 1

There is a Knowledge Base document entitled FAQ: What is the best format to use when inserting logos into a map document while maintaining transparency? which says:

Logos are usually designed in a vector illustration package such as Adobe Illustrator, and then exported to a pixel-based format. However, exporting the logo as EMF will maintain the vectors and allow resizing in ArcMap without loss of quality. It will display correctly in ArcMap when printed and exported since there is no background to a vector drawing.

If you do not have access to Adobe Illustrator to create your EMF files then Program to create EMF that conserves transparency may be worth looking into.

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Thanks...but i´m still having difficulties. I have a png in Illustrator which has a transparent background. When I export it to emf format it gets given a white background. There is no export properties to set. - But I´m not talking about images like in your link. I am trying to symbolize a point feature classe in ArcGIS –  Robert Buckley Mar 17 at 9:40
    
@RobertBuckley That sounds like your export from Adobe Illustrator is where your transparency is lost. Since Illustrator is not GIS software I recommend that you pursue that as a separate Question via Super User. Can you also edit your Question here to include your precise steps in more detail, please? –  PolyGeo Mar 17 at 9:45
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