Well, did some searching for a FOSS (Free Open Source Software) alternative and could only find Okular that may fit the bill. (No pun intended)
Okular - The Universal Document Viewer
I've never used it and may just go on ahead and try, but looks promising for a free PDF viewer and annotator and whatnot.
What I don't like is they are offering the download at the stupid Windows Play Store which in my opinion goes against the whole idea of FOSS and/or privacy. A lot of software one day will be Windows Play Store only and now Microsoft REALLY owns your computer. But there will be those that resist so all hope is not lost.
You want the .exe
here and as of this post named okular-22.12.0-1229-windows-cl-msvc2019-x86_64.exe Of course no one is stopping you from using the Windows Play Store if you run 10 or 11.
I'm actually not sure if Okular will run in 7 or not. I can't download it right now because the VPN I'm using is a slow loris. I will latter though.
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Here's a
slow loris.
Here's a
tiny one.
Off topic.
To think we have to consume each other for sustenance. I don't trust this creation...
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On the computer front, slow loris is actually a script for
Nmap.... But I'm sure you knew that. LOL!