I've been reading the basic security guide that's posted here and as somebody who doesn't know much about computer things (Just recently learned how to download wow mods) I'm a bit confused.
It says that Searx has multiple instances available, including a Tor Hidden Service. What does that mean, is searx a way to reach the same information as Tor or does it mean that you can use searx through Tor?
Does using a VPN+Tor increase security at all? I was reading an article that said if you use the VPN to enter Tor it will leave your exit nodes insecure, is this the same as normal Tor or does the added VPN create that vulnerability?
Browser plugins don't have any effect on Tor, right?
Edit: Since I can't find a straight answer for this online, can I download a pdf off Tor without revealing my IP and all that jazz?