If you're on a phone, you can use dedicated apps from the Google Play Store:
Select (or "Save as PDF" on Mac) as your printer.
While your request could mean a few things, I'm answering for the most likely one: you want to so you can download it.
: Useful if you want to paste text directly into an editor and apply basic formatting (like bold or headings) before downloading. 2. Using Apps (Mobile)