title: How to verify that pdf is text based using ITextSharp?
body: <p>I need to verify that the pdf report is text based (and not bitmap based; however it could contain some images). I do not need to extract the text, just to verify that it is text based.</p>
  
  <p>Is there a way how to perform such a verification using ITextSharp library? </p>
  
  <p>Thanks in advance, </p>
  
  <p>Stefan</p>