selecting a new pdf reader
Sometime years ago I answered a question that made Adobe my default pdf reader. I don't know how to change that selection. Will someone please inform me how to change that.
In fact, I have always failed when a question is asked "what application do you want to open that with?" I have never figured out this part of my laptop. Or what extensions mean what, or what they do, or where to go to find this information.
I would appreciate a little education on this, starting with the document reader because I'm pretty sure I need to delete Adobe.
Thank you.
MacBook Pro 13″, macOS 10.15