title: Error 14 The type or namespace name 'Document' could not be found (are you missing a using directive or an assembly reference?)
body: <pre><code>Document document = new Document();
              MemoryStream stream = new MemoryStream();
              try
              {
                  PdfWriter pdfWriter = PdfWriter.GetInstance(document, stream);
                  pdfWriter.CloseStream = false;
  
                  document.Open();
                  document.Add(new Paragraph("Hello World"));
              }
              catch (DocumentException de)
              {
                  Console.Error.WriteLine(de.Message);
              }
              catch (IOException ioe)
              {
                  Console.Error.WriteLine(ioe.Message);
              }
  
              document.Close();
  
              stream.Flush(); //Always catches me out
              stream.Position = 0; //Not sure if this is required
              return File(stream, "application/pdf");
  </code></pre>
  
  <p>i got the same error for pdf writer and Paragraph</p>