Preview loads pdf file, which then turns black
When I double-click on a pdf file in the Finder window, it loads into Preview and shows momentarily. Then the screen for that file in Preview turns entirely black. It doesn't matter whether open the pdf file this way or by using the "open" feature in Preview. The same result occurs.
I have the latest OS update: Version 10.13.2 (17C205). The pdf files were created in July 2017 and show correctly (black letters on white background) in the Finder preview window, but they are too small to read there.
Playing around with the background and type features in Preview does nothing. This looks like a bug and has been reported previously without solution. Is there a fix or workaround?
Mac mini, OS X Mavericks (10.9.2), Airport Utility Wireless Access Con