On your computer, the "PrntScn" key might be labeled "Print Screen," "PrtSc," "Print Scrn" or something similar. To take a screenshot of a small part of the screen, use the Windows Snipping Tool.

Launch Chrome and go to the Web page that you want to enlarge. Click the "Menu" button. Find "Zoom" in the list of menu options. Click the "+" next to Zoom to enlarge the page or the "-" button ...