View.ShowTextBoundaries Property (Word)

True if dotted lines are displayed around page margins, text columns, objects, and frames in print layout view. Read/write Boolean.

expression .ShowTextBoundaries

expression An expression that returns a View object.

This example switches the active window to page view and displays text boundary lines.

With ActiveDocument.ActiveWindow.View 
 .Type = wdPrintView 
 .ShowTextBoundaries = True 
End With