title: adobe reader could not open pdf because it is either not a supported file type or because the file has been damaged
body: <p>I am using iTextSharp for creating PDF for reports &amp; send as attachment(). Pdf is created successfully &amp; can be opened locally using Adobe Reader but can't opened after sent to mail &amp; gives error :
  "adobe reader could not open pdf because it is either not a supported file type or because the file has been damaged "</p>
  
  <p>Also pdf file size is zero in attachement.
  I think its corrupted in between. what's may be the issue?</p>