Actually I found a way to do it through code:
Option Explicit
Private Sub Command1_Click()
ApplyBackgroundToPDF "C:\PDIANR-0606-203135.pdf", "C:\Proofing.pdf", "C:\TESTIT.PDF"
MsgBox "Complete!", vbInformation
End Sub
Private Function ApplyBackgroundToPDF(BasePDF As String, BackgroundPDF As String, OutputPDF As String)
Dim pdDoc As Acrobat.AcroPDDoc
Dim fso As New FileSystemObject
Dim template As Variant
'Check for existence of output file
If fso.FileExists(OutputPDF) Then fso.DeleteFile OutputPDF
'Open base document
Set pdDoc = CreateObject("AcroExch.PDDoc")
pdDoc.Open BasePDF
DoEvents
'Initialize JavaScript
Set template = pdDoc.GetJSObject
'Place the template as a watermark
template.addWatermarkFromFile BackgroundPDF
'Save
pdDoc.Save 1, OutputPDF
'Close & Destroy Objects
pdDoc.Close
Set pdDoc = Nothing
Set template = Nothing
Set fso = Nothing
End Function
Swi