title: Check if the PDF document is blank in C#
body: <p>We have a C# application which will read a pdf document for barcode and if barcode is found it will upload the document to a file in IBM FileNet P8.</p>
  
  <p>If barcode is not found it will be moved to a different folder.</p>
  
  <p>Now we have one more request from the client. Check if the PDF is blank. In the sense if a user scans a white page and emails the PDF.</p>
  
  <p>I need to check if it is blank if so notify the user.</p>
  
  <p>I am using iTextSharp.</p>
  
  <p>Thanks</p>