To make the picture larger, Hold down the control key and press the plus sign.. To make it smaller, hold down the control key and press the minus sign.
    Another way to enlarge it is to use the magnifying glass. On your toolbar, find the magnifying glass, and click on it, then draw a box around the area that you want to be large, or just click a few times.
    To reduce the image view, hold down the alt key while using the magnifying glass.
    Next choose the hand tool to move the picture around to view the part you want. Move the mouse around to move the picture.