Sierra PDF problems get worse in 10.12.2

TidBITS:

The first I heard that Sierra’s PDF-related problems might affect more than ScanSnap scanners came in a comment left on one of those articles on 26 October 2016.

I have to recommend that Sierra users avoid using Preview to edit PDF documents until Apple fixes these bugs. If editing a PDF in Preview in unavoidable, be sure to work only on a copy of the file and retain the original in case editing introduces corruption of any sort. In the meantime, we’ll be watching closely to see which of these PDF-related bugs Apple fixes in 10.12.3, which is currently in beta testing.

I don’t use PDFs enough or in this way for this to be an issue but in reading the article, you can see how this will affect many developers.