General :: Exporting A Single Record To PDF And Excel File

I am trying to Export a single record from my customer table and using below codes -

Private Sub lblPDF_Click()
Me.Refresh
Dim myPath As String
Dim stDocName As String
Dim theFileName As String
stDocName = "rptCustomerMaster" (is my Report File name)
>>>DoCmd.OpenReport stDocName, acPreview, , "CustId = " & Nz(Me.CustID, 0)
myPath = "C:..."
theFileName = "CustID " & CustID & ".pdf"
DoCmd.OutputTo acOutputReport, stDocName, acFormatPDF, theFileName, True
End Sub

Having errors on the highlighted code, how to resolve it, or is there any support available to export record into PDF file?