Hi Will, thanks for the heads up. I didn't know the viewer has went unsupported. I gave the editor version a try, and the issue is not present! Thanks for your help.

When viewing PDF's that have annotations/labels/comments, black boxes appear. When viewing the same PDF in a different program like Adobe, Edge, Chrome, etc the boxes do not appear. This happens with multiple PDF's and only in PDF-XChange Viewer. I have reviewed all the settings and can't seem to fi...