Brother PT-9700PC - Manual (Page 17)

long, the width of the text object is increased.
5. Free Size: The text size is fixed. If the text is too long, the width of the text object is
increased. If a line feed is added, the height of the text object is increased.
Specifying a Text Layout setting
Click the button circled in red to display a drop-down list, and then select the desired
option.