How to Quickly and comfortably resize a window

Resize a window

The basic method of resizing a window is to position the pointer over a corner or edge so the cursor changes to a double-headed arrow, then hold and drag in the direction you want the window to grow or shrink.

A trackpad trick

To resize by moving three fingers on the trackpad, go to System Preferences’ Accessibility pane, select Mouse & Trackpad, click Trackpad Options and set “Enable dragging” to “three finger drag.”

Resize in two directions

You can resize a window so that the opposite edge or corner mirrors the movement of the one you drag: hold Alt while dragging an edge or corner. Great for making a window wider.