End Sub
 
Private Sub Setup()
      Cells.Clear
    
Let Range("A1") = "Path"    
  Let Range("B1") = "Size (KB)"    
Let Range("D1") = "PDF Path"    
  Let Range("E1") = "PDF Size (KB)" 
 Let Range("E:E").Font.Color = xlNone
   Let Range("B:B", "E:E").NumberFormat = "0.0"
 
    With Range("A1:E1")
        Let .Interior.Color = RGB(102, 153, 255)
          Let .Borders.LineStyle = xlContinuous
    End With 
End Sub
 
  Private Sub SelectFilesToConvert()
    Dim i As Long
    Dim r As Range
 
    Set r = Range("A2")
      With Application.FileDialog(msoFileDialogOpen)
        Let .AllowMultiSelect = True        
        Let .InitialFileName = "initial path"          Let .InitialView = msoFileDialogViewList
        .Filters.Clear
        .Filters.Add "Word Documents", "*.docx"
          .Show
        ' Create hyperlinks to the files and show their size in KB
        For i = 1 To .SelectedItems.Count
              r.Worksheet.Hyperlinks.Add Anchor:=r, Address:=.SelectedItems(i), TextToDisplay:=.SelectedItems(i)
            r.Offset(0, 1) = FileLen(r) / 1000
   
            ' Open each Word file
            OpenWordFile CStr(r)
            Set r = r.Offset(1, 0)
          Next i
    End With 
End Sub
 
Private Sub OpenWordFile(filePath As String) 
      On Error GoTo ErrCleanUp
 
    Dim wordApp As Word.Application
    Set wordApp = New Word.Application
   
    Let wordApp.DisplayAlerts = wdAlertsNone
    Let wordApp.Visible = False
 
    Dim wordDoc As Document
      Set wordDoc = wordApp.Documents.Open(filePath)
 
    SaveAsMinimizedPDF wordDoc 
      Let wordDoc.Saved = True
    wordDoc.Close
    wordApp.Quit
 
    Exit Sub
   
ErrCleanUp:
    Let wordDoc.Saved = True
    wordDoc.Close
    wordApp.Quit
  End Sub
 
Private Sub SaveAsMinimizedPDF(ByRef doc As Document)
    doc.ExportAsFixedFormat OutputFileName:= _
   Split(doc.FullName, ".")(0) & ".pdf", ExportFormat:=wdExportFormatPDF _
 , OpenAfterExport:=False, OptimizeFor:=wdExportOptimizeForOnScreen, Range _
   :=wdExportAllDocument, From:=1, to:=1, Item:=wdExportDocumentContent, _
 IncludeDocProps:=True, KeepIRM:=True, CreateBookmarks:= _
 wdExportCreateNoBookmarks, DocStructureTags:=False, BitmapMissingFonts:= _
   False, UseISO19005_1:=False
End Sub
 
Private Sub UpdateConverted()
    Dim i As Long
      Dim r As Range
    For i = 2 To Range("A" & Rows.Count).End(xlUp).Row
        Set r = Range("A" & i)
          r.Offset(0, 3).Worksheet.Hyperlinks.Add _
 Anchor:=r.Offset(0, 3), Address:=Split(r, ".")(0) & ".pdf", _
 TextToDisplay:=Split(r, ".")(0) & ".pdf"
          r.Offset(0, 4) = FileLen(r.Offset(0, 3)) / 1000
        ' validate
        r.Offset(0, 4).Font.Color = IIf(r.Offset(0, 4) > 100, RGB(255, 0, 0), RGB(0, 255, 0))
      Next i 
End Sub