I have no idea how to call what I'm looking for so bear with me.
I'm looking for a simple tool or method for displaying text larger than normal. At best screen filling.
Imagine me sitting at my desk and telling another person next to me to call a number which is in one of my emails. I can either read the number or, and here it comes, mark it, hit a button and see the number enlarged all over the screen so that it can be read 2m from me.
I frequently have to share a url with someone and here this would be handy too. I can't always use the "share" button.
Is this something that already exists? Usually I have to copy and paste the snippet into an editor and resize the font to some large size but that's not very cool.