Dim NVmerge : Set NVmerge = CreateObject("PDFMerge.Neevia")
   NVmerge.PDFEncrypt = true
   NVmerge.PDFEncryptionType = "rc4"
   NVmerge.PDFOwnerPassword = "owner"

   ' p - document printing is denied
   ' e - disable extraction of text and graphics
   NVMerge.PDFPermissions = "pe" 

   Dim retVal : retVal = NVmerge.MergePDF("c:\1.pdf+c:\2.pdf", "c:\merged.pdf")
   if retVal<>0 then
     MsgBox "Error code=" & CStr(retVal)
   else 
     MsgBox "Done"
   end if