Sizing the purchase order table
You can size the table so that it spans the width of the page. By default, it is centered on the page.
Select the table.
Move the cursor to the middle handle on the right so that the move cursor appears (shown in the previous step).
Drag to make the table fill the width of the page.
To make the width of all the columns the same, select Table > Distribute Columns Evenly.
Click to continue: Entering labels in the header row