VBA Excel - Merge two PDFs with PDFCreator

Hello,

I'm trying to create a macro to merge two PDF documents but it's not working. Could someone help me? Here’s the macro:

Sub testPrintPDF()

Dim OLDPRINTER As String
Dim FILE As String 'Link to the folder where the PDFs are located
Dim SCOPE1 As String 'Name of the 1st PDF
Dim SCOPE2 As String 'Name of the 2nd PDF
Dim PDFCREATOR As New clsPDFCreator

OLDPRINTER = ActivePrinter
ActivePrinter = "PDFCreator on Ne00:"

SCOPE1 = "1_TdB CLEANING - PARIS"
SCOPE2 = "2_TdB CLEANING - WASTE CENTER"
FILE = ActiveWorkbook.Path
FILE = Replace(FILE, "3_Calcul", "4_Infocentre")

With PDFCREATOR
.cOption("UseAutosave") = 1
.cOption("UseAutosaveDirectory") = 1
.cOption("AutosaveDirectory") = FILE
.cOption("AutosaveFilename") = "combine.pdf"
.cOption("Autosaveformat") = 0
.cStart
.cClearCache
End With

PDFCREATOR.cPrinterStop = True
PDFCREATOR.cPrintFile (FILE & SCOPE1 & ".pdf") 'pdf-reader pops up and freezes until it is closed
Sleep 200
PDFCREATOR.cPrintFile (FILE & SCOPE2 & ".pdf") 'pdf-reader pops up and freezes until it is closed
Sleep 200

PDFCREATOR.cCombineAll

PDFCREATOR.cPrinterStop = False

'PDFCREATOR.cClose
ActivePrinter = OLDPRINTER
' Change the default printer

End Sub

Thank you for your help
Configuration: Windows 7 / Firefox 40.0