--- 5 Best Free PDF Readers and Viewers for Windows 10 in 2019 7th March 2019 by Manish Sahay is a good review. Adobe itself is an unpleasant company that writes bad software and has moved its pdf-writing software on line, probably to better rip off customers and harvest their information. Their reader is purposely limited and unsatisfactory and they write poor software anyway. I've tried Foxit and been disappointed for some reason, and PDF-XChange Editor was bad enough for some reason I forget that I decided it wasn't minimally satisfactory. Sumatra is very clean, but requires CTRL-mouse if you want to select text. So i have settled on STDU Viewer, at http://www.stdutility.com/stduviewer.html.