Save web as PDF (web is blocking command print)

I'm learning Python3 on a very expensive platform, I used to save the solution of the Notebooks every week as PDF. I merged them and used them as a 'dictionary' to solve the following notebooks. Suddenly they blocked it. When I press 'print' nothing happens, I tried a variation of extension already from the web store. Still no reaction. I know that I could copy and paste the side, it's only, I don't want to miss the pretty illustrations. Has anyone a good idea? Does anyone have knowledge of an extension which does, for example, screenshot from the top to the end of the side? Or even better, a method to save the page as PDF without sending requests to their server. Please help. Thank you so much.