Public Sub NewPDF()
    Dim ok As Boolean
    Dim PDFApp As Acrobat.AcroApp
    Dim pddoc As Acrobat.AcroPDDoc
    Dim tempPDDoc As Acrobat.AcroPDDoc
   
    Set PDFApp = CreateObject("AcroExch.App")
    Set pddoc = CreateObject("AcroExch.PDDoc")
    Set tempPDDoc = CreateObject("AcroExch.PDDoc")
    If Not tempPDDoc.Open("D:\temp\Test.pdf") Then
        Set tempddoc = Nothing
        Set pddoc = Nothing
        Set PDFApp = Nothing
        MsgBox Err.Number & ": " & Err.Description, vbOKOnly + vbCritical, "系统信息"
        Exit Sub
    End If
    ok = pddoc.Open("d:\temp\vk2.pdf")
        If ok <> -1 Then
            ok = pddoc.Create()
        End If
        Call pddoc.InsertPages(pddoc.GetNumPages() - 1, tempPDDoc, 0, tempPDDoc.GetNumPages(), False)
        ok = pddoc.Save(1, "d:\temp\vk2.pdf")

        Call pddoc.Close
        tempPDDoc.Close
        PDFApp.Exit
        Set pddoc = Nothing
        Set tempPDDoc = Nothing
        Set PDFApp = Nothing
End Sub