I've found that Microsoft Window's print-to-pdf also does the trick
(e.g. make the redactions, then use print-to-pdf on the redacted pdf)

FeedDemon (by Nick Bradbury) is the reader I've been using for over 20 years. Hasn't had an update for more the 15 years, but still works like a champ (pretty impressive feat for windows software). What's cool is that much of its behavior comes from external XSLT files, so I've been able to tweak the UI and add a little custom functionality. It's a great design that's really stood the test of time. I subscribe to over 50 feeds and more than half have daily content.