How to Enlarge the Text on Your Computer. Over the course of the day, as you read email messages, check spreadsheets and write letters to clients, your eyes will probably want you to take a break.

Here’s how to split your screen on either a Mac or Windows computer, a great tool for multitasking. Splitting your screen is a great tool for multitasking. (Photo by Phil Barker/Future ...

Place your index and middle fingers on the iPhone screen, holding them together while you touch the screen. Spread your fingers apart to make the text and images on the Internet site larger.