Note the requirement foe reference to PDFCreator
[VBA]Sub PrintToPDF_Early()
'Author : Ken Puls (www.excelguru.ca)
'Macro Purpose: Print to PDF file using PDFCreator
' (Download from http://sourceforge.net/projects/pdfcreator/)
' Designed for early bind, set reference to PDFCreator

Dim pdfjob As PDFCreator.clsPDFCreator
Dim sPDFName As String
Dim sPDFPath As String

'/// Change the output file name here! ///
sPDFName = "testPDF.pdf"
sPDFPath = ActiveDocument.Path & Application.PathSeparator


Set pdfjob = New PDFCreator.clsPDFCreator

With pdfjob
If .cStart("/NoProcessingAtStartup") = False Then
MsgBox "Can't initialize PDFCreator.", vbCritical + _
vbOKOnly, "PrtPDFCreator"
Exit Sub
End If
.cOption("UseAutosave") = 1
.cOption("UseAutosaveDirectory") = 1
.cOption("AutosaveDirectory") = sPDFPath
.cOption("AutosaveFilename") = sPDFName
.cOption("AutosaveFormat") = 0 ' 0 = PDF
.cClearCache
End With

'Print the document to PDF
Application.ActivePrinter = "PDFCreator1"
ActiveDocument.PrintOut

'Wait until the print job has entered the print queue
Do Until pdfjob.cCountOfPrintjobs = 1
DoEvents
Loop
pdfjob.cPrinterStop = False

'Wait until PDF creator is finished then release the objects
Do Until pdfjob.cCountOfPrintjobs = 0
DoEvents
Loop
pdfjob.cClose
Set pdfjob = Nothing
End Sub
[/VBA]