Resizing Text Box Text boxes, regardless of what they contain, can be easily sized in Word. To change the size of an existing text box, follow these steps: STEP 1 - Click once on the information within the text box. A box appears for the object (this is designated by eight squares, or handles, around the perimeter). STEP 2 - Use the mouse to point to one of the handles. The pointer will change to a double-headed arrow. Click on the left mouse button. STEP 3 - Drag the handle to resize the text box. STEP 4 - Release the mouse button when the text box is the size you want. The information it contains is reformatted to fit within the newly resized text box.