How come I can't open GrabCAD PDF files?

Can't open PDF files.

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2 Answers

Can you post the file, or a link to the non-working file?
My best guess: The PDF file is a recent 3D PDF, and your viewer does not support the format. You might try updating the viewer, or using Adobe Acrobat Reader if you are using an alternate viewer.

 
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That was the answer to my problem. I needed a 3D PDF viewer. Thx.

 
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