system
A chat on subreddit /r/pcmasterrace
human
It's the icon that comes back all the time (pay to see pdf is not part of what I do, I simply always had without thinking the free version)
gpt
I thought Adobe Acrobat was the paid version, but I see now that Acrobat Reader (the actual "free" version) is also named Adobe Acrobat on the icon.

And it probably comes back when you update the program.

But if you uninstall it, it won't come back by itself.