Sub pageNumber()
ActiveDocument.Sections(ActiveDocument.Sections.Count) _
.Headers(wdHeaderFooterPrimary).Range.Select
With Selection
.Paragraphs(1).Alignment = wdAlignParagraphCenter
.TypeText Text:="Page "
.Fields.Add Range:=Selection.Range, Type:=wdFieldEmpty, Text:= _
"PAGE ", PreserveFormatting:=True
.TypeText Text:=" of "
.Fields.Add Range:=Selection.Range, Type:=wdFieldEmpty, Text:= _
"NUMPAGES ", PreserveFormatting:=True
End With
End Sub