Whether you use a Mac or a PC, you can easily adjust the size of the text. Windows users press ‘Ctrl’ and ‘+’ on your keyboard to zoom in, press ‘Ctrl’ and ‘-’ to zoom out, and press ‘Ctrl’ and ‘0’ to return to default text size. Mac users press ‘Command’ and ‘+’ on your keyboard to zoom in, press ‘Command’ and ‘-’ to zoom out, and press ‘Command’ and ‘0’ to return the text to its default size.