OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Haihaisoft PDF Reader - Haihaisoft PDF Reader is the name of a free to use PDF reader and printer that is extremely simple to launch.
Screencast-O-Matic - Free version Records up to 15 minutes, premium is $15/year.
Altarsoft PDF Reader - Altarsoft PDF Reader is a simple to use PDF files management program that allows its users to view PDF files, encrypt the files and even annotate these files as well.
Nimbus Clipper - Capture, annotate, and share anything you see online
eXPert PDF Reader - eXPert PDF Reader is a free to use PDF reader and views for the Windows operating systems.