I have been trying to solve this issue for the last 2 years and I finally figured it out!   When calibrating my iMac I noticed that the Adobe RGB setting looked like the dull PDF's that I had been exporting from Vectorworks. When I changed the setting to Apple RGB the drawing inside of Vectorworks looked correct but when I exported the PDF again I had the same issue.   To fix the PDF color on export I had to:   1. Navigate to: /Library/Application Support/Adobe/Adob
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