Sub SplitDoc()
    Dim docMultiple As Document
    Dim docSingle As Document
    Dim rngPage As Range
    Dim iCurrentPage As Integer
    Dim iPageCount As Integer
    Dim strNewFileName As String
    Dim strInvoice As String
     
    Application.ScreenUpdating = False 'Makes the code run faster and reduces screen _
    flicker a bit.
    Set docMultiple = ActiveDocument 'Work on the active document _
    (the one currently containing the Selection)
    Set rngPage = docMultiple.Range 'instantiate the range object
    iCurrentPage = 1
     'get the document's page count
    iPageCount = docMultiple.Content.ComputeStatistics(wdStatisticPages)
    Do Until iCurrentPage > iPageCount
        If iCurrentPage = iPageCount Then
            rngPage.End = ActiveDocument.Range.End 'last page (there won't be a next page)
        Else
             'Find the beginning of the next page
             'Must use the Selection object. The Range.Goto method will not work on a page
            Selection.GoTo wdGoToPage, wdGoToAbsolute, iCurrentPage + 1
             'Set the end of the range to the point between the pages
            rngPage.End = Selection.Start
        End If
        rngPage.Copy 'copy the page into the Windows clipboard
        Set docSingle = Documents.Add 'create a new document
        docSingle.Range.PasteAndFormat Type:=wdFormatOriginalFormatting
        'docSingle.Range.Paste 'paste the clipboard contents to the new document
         'remove any manual page break to prevent a second blank
        docSingle.Range.Find.Execute FindText:="^m", ReplaceWith:=""
         'build a new sequentially-numbered file name based on the original multi-paged file name and path
        'strNewFileName = Replace(docMultiple.FullName, ".doc", "_" & Right$("000" & iCurrentPage, 4) & ".doc")
        'strNewFileName = "Whatever" & ".doc" ' Usually a sting from differan Sub
        strNewFileName = "whatever" & ".PDF"
        docSingle.SaveAs strNewFileName, Word.WdSaveFormat.wdFormatPDF 'save the new single-paged document
        iCurrentPage = iCurrentPage + 1 'move to the next page
        docSingle.Close SaveChanges:=False 'close the new document
        rngPage.Collapse wdCollapseEnd 'go to the next page
    Loop 'go to the top of the do loop
    Application.ScreenUpdating = True 'restore the screen updating
     
     'Destroy the objects.
    Set docMultiple = Nothing
    Set docSingle = Nothing
    Set rngPage = Nothing
End Sub