Change Size Of Picture Shape Text Box. Do one of the following. To keep the center of an object in the same place press and hold CTRL while you drag the sizing.
The Format tab will appear. For more information about selecting shapes see Select a shape or other object. Select the picture shape WordArt or other object to resize.
In the Format Shape dialog box click the Text Box category and under AutoFit click the Do Not AutoFit option button.
In the Format Shape dialog box click the Text Box category and under AutoFit click the Do Not AutoFit option button. When you are done click OK. Power BI places an empty text box on the canvas. To increase or decrease the size in one or more directions drag a sizing handle away from or toward the center while doing one of the following.