Without seeing the document, the following should do that. It searches for manual page breaks and adds the built-in Title paragraph style to the line following the page break. You can format that style however you wish:
Code:
Sub Macro1()
Dim orng As Range
Set orng = ActiveDocument.Range
orng.Paragraphs(1).Range.Style = "Title"
With orng.Find
Do While .Execute(findText:="^m")
orng.Collapse 0
orng.Next.Paragraphs(1).Style = "Title"
Loop
End With
End Sub