Hello, I am having some trouble plotting my drawing to Pdf and having the black gradient fill show up. I can see the black gradient fill and others in Model and PaperSpace even in Plot preview, but not after I plot to Pdf. I have used other gradients on the same design, and they gave no problems; I can see them clearly after I plot. I am using AutoCAD 2016. The gradient color I am trying to use is one (1) or color code 0,0,0. What can I do to fix this problem? I will appreciate any help.