Office 2007 will allow you to easily create PDFs from any Word Document using the output menu on the Office button, (Access does too with Reports), but recently I had to create a procedure for a client that wanted to convert Word docs to PDF, email them and do it all from Access.

Note: To make this code work, you will need to add a reference to Word 2007 to your Access database. 

Here is the code:
Private Sub CreatePDF(strSourceFile As String, strDestFile As String)
    Dim objWord As Word.Application
    Dim objWordDoc As Word.Document
    On Error GoTo ErrorHandler
    Set objWord = CreateObject(“Word.Application”)
    objWord.Visible = True
    Set objWordDoc = objWord.Documents.Open(strSourceFile)
    If Not objWord Is Nothing Then
        objWordDoc.ExportAsFixedFormat strDestFile, wdExportFormatPDF, False, wdExportOptimizeForPrint, wdExportAllDocument
    End If
    objWordDoc.Close False
    Set objWordDoc = Nothing
    Set objWord = Nothing
    Exit Sub
    MsgBox Err.Description, vbInformation, “Error Creating PDF”
End Sub

Note how I display Word at the begining of the process, not doing so may leave Word “hanging” in memory if your code comes back with an error.