Zoom in and out of a page
Many programs that support the ability to zoom in and out of a page or document also support the shortcut key to quickly zoom in and out.
Keyboard and mouse
Press and hold the Ctrl key and press the - (minus) key or + (plus) key to zoom out or in of a web page or document. The - and + keys next to the backspace key, as well as on the numeric keypad, can be used.
Reset the zoom level
To reset the zoom back to the default view, press and hold the Ctrl key and press the 0 (zero) key.