Visual Basic - Ayuda con programa VBA para contar números de página de los archivos PDF en Excel

Sub Test()

    Dim I As Long

    Dim xRg As Range

    Dim xStr As String

    Dim xFd As FileDialog

    Dim xFdItem As Variant

    Dim xFileName As String

    Dim xFileNum As Long

    Dim RegExp As Object

    Set xFd = Application.FileDialog(msoFileDialogFolderPicker)

    If xFd.Show = -1 Then

        xFdItem = xFd.SelectedItems(1) & Application.PathSeparator

        xFileName = Dir(xFdItem & "*.pdf", vbDirectory)

        Set xRg = Range("A1")

        Range("A:B").ClearContents

        Range("A1:B1").Font.Bold = True

        xRg = "File Name"

        xRg.Offset(0, 1) = "Pages"

        I = 2

        xStr = ""

        Do While xFileName <> ""

            Cells(I, 1) = xFileName

            Set RegExp = CreateObject("VBscript.RegExp")

            RegExp.Global = True

            RegExp.Pattern = "/Type\s*/Page[^s]"

            xFileNum = FreeFile

            Open (xFdItem & xFileName) For Binary As #xFileNum

                xStr = Space(LOF(xFileNum))

                Get #xFileNum, , xStr

            Close #xFileNum

            Cells(I, 2) = RegExp.Execute(xStr).Count

            I = I + 1

            xFileName = Dir

        Loop

        Columns("A:B").AutoFit

    End If

End Sub