Highlighting in Preview keeps failing
Hi, every time I open a pdf to read and highlight, the highlight function stops working after a few minutes and the highlight options become dim. I can highlight the doc again if I close it and re-open it but this is getting very annoying as I read a lot of pdfs for research.
I wonder if this is some glitch with Microsoft One Drive as all my pdf files are stored in my One Drive account through my University.
MacBook Pro 13″, OS X 10.11