Place the mouse cursor at the edge of the text field, right-click to access the context menu and select Text field: Properties to open the dialog box.
Alternatively: On the contextual ribbon tab Object, click on the group arrow
in the bottom right corner of any command group.
Tip: Enable 
Object mode on the ribbon tab View in order to access the dialog box even faster by double-clicking on the text field.
In the open dialog box, you can change the properties of the text field, such as size, margins, and numerous other setting options:
Format tab
On this tab, you can change the format of the text field:
▪Size section
| Here, you can change the Size of the text field. |
| You can either specify an exact width and height or allow the text field to expand automatically to accommodate the relevant text. To do so, select the option Growing for Width or Height and enter the desired minimum and maximum values. |
▪Vertical alignment section
| This setting determines how the inner text should be aligned between the top and bottom edges of the text field: |
Option |
Explanation |
Top |
The text is aligned to the top edge of the text field. (This is the default setting.) |
Centered |
The text is centered between the top and bottom edges. |
Bottom |
The text is aligned to the top edge of the text field. |
Justified |
The lines of text are vertically justified and are thus evenly distributed between the top and bottom edges of the text field. |
Margins tab
On this tab, you can change the margins of the text field:
▪Wrap margins section
| Here, you can change the wrap margins. |
▪Inner margins section
| Here, you can change the inner margins. |
Properties tab
On this tab, you can change general settings. For more information, see Object properties, Properties tab.
Borders tab
With this tab, you can give the text field a full border or individual border lines.
The options on this tab correspond to those of the ribbon command Home | group Paragraph | Borders. For more information, see Borders and lines).
Shading tab
With this tab, you can apply shading to the text field using a color or a pattern.
The options on this tab correspond to those of the ribbon command Home | group Paragraph | Borders. For more information, see Shading.