Extract the ‘pdf’ file embedded in excel and save it in to a folder us?

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C#

C#4.0

Hi All,
I am working with C#.net2.0,office 2010, vs2005. I have an excel file with embed ‘pdf’ and ‘doc’ files. I am able to read and save the ‘doc’ file. But can’t do anything with pdf. I need to extract the ‘pdf’ file and save it in to a folder.

if (inlineShape.OLEFormat.progID.StartsWith("word.document."))
   {
       inlineShape.OLEFormat.Activate();
       Word.Document document = inlineShape.OLEFormat.Object as Word.Document;
       FileInfo wfi = new FileInfo(fileName);
       object wfileName = (object)(explodedDirectory + wfi.Name + "." + docCount.ToString() + ".doc");
       object fileFormat = Word.WdSaveFormat.wdFormatDocument;
document.SaveAs(ref wfileName, ref fileFormat, ref _missing, ref _missing, ref _missing, ref _missing, ref _missing, ref _missing, ref _missing, ref _missing, ref _missing, ref _missing, ref _missing, ref _missing, ref _missing, ref _missing);
      document.Close(ref saveChanges, ref originalFormat, ref routeChanges);
      document = null;
   }

Thanks in Advance.