Acrobat Reader does exactly that. It gives you the best "reader" out there. I'm serious about that as well. If you are on a Mac or a PC, the "readers they provide do fine with a flat PDF. But if you have a form, interactive PDF, etc., they fail. Reader is free and it does the best job.
But to your wish to turn a web page into a PDF, there is a free option outside of Acrobat: Print Friendly. Google Print Friendly, download it, install it, and you'be delighted with the results. I can say that this provides the best options for converting a web page into a PDF I am aware of (and I have Acrobat Pro DC).