Here is a sample file to export drawing to PDF with a list file for your reference.
Hope it helps!
Sub Main()
Dim arrFileslist() As String
arrFileslist = GetFilesFromTxt
Dim iStep As Integer
For iStep = 0 To UBound(arrFileslist)
On Error Resume Next
Set oDoc = ThisApplication.Documents.Open(arrFileslist(iStep), True)
Call Export2PDF
On Error GoTo 0
Next
End Sub
'Get all files from txt files
Public Function GetFilesFromTxt() As String()
Dim strLine As String
Dim strFilesListArr() As String
Dim k As Integer: k = 0
Open sFilelistTxt For Input As #1
Do Until EOF(1)
Line Input #1, strLine
ReDim Preserve strFilesListArr(k) As String
strFilesListArr(k) = strLine
k = k + 1
Loop
Close #1
GetFilesFromTxt = strFilesListArr
End Function
Public Function Export2PDF()
Dim oDoc As DrawingDocument
Set oDoc = ThisApplication.ActiveDocument
'Dump PDF
Dim oPDFAddIn As TranslatorAddIn
Set oPDFAddIn = ThisApplication.ApplicationAddIns.ItemById("{0AC6FD96-2F4D-42CE-8BE0-8AEA580399E4}")
Dim oContext As TranslationContext
Set oContext = ThisApplication.TransientObjects.CreateTranslationContext
oContext.Type = IOMechanismEnum.kFileBrowseIOMechanism
Dim oOptions As NameValueMap
Set oOptions = ThisApplication.TransientObjects.CreateNameValueMap
Dim oDataMedium As DataMedium
Set oDataMedium = ThisApplication.TransientObjects.CreateDataMedium
Dim oPath As String
oPath = "C:\temp" ' PDF save folder
Dim oFileName As String
oFileName = oDoc.DisplayName
oDataMedium.FileName = oPath & "\" & oFileName & ".pdf"
Call oPDFAddIn.SaveCopyAs(oDoc, oContext, oOptions, oDataMedium)
Dim oSheets As Sheets
Set oSheets = oDoc.Sheets
For Each oSheet In oSheets
FileName = oPath & "\" & oFileName & "_" & Left(oSheet.Name, Len(oSheet.Name) - 2) & ".dwg"
Next
Call oDoc.SaveAs(oPath & "\" & oFileName & ".dwg", True)
End Function
Xun