title: Can't find text in PdfTable
body: <pre><code>BaseFont Vn_Helvetica = BaseFont.CreateFont(@"C:\Windows\Fonts\arial.ttf", 
  "Identity-H", BaseFont.EMBEDDED);
  Font fontNormal = new Font(Vn_Helvetica, 12, Font.NORMAL);
  foreach (var t in htmlarraylist)
                  {
  
   if (t is PdfPTable)
                      {
                          var countColumn= ((PdfPTable)t).NumberOfColumns;//is 7
                          var countRows = ((PdfPTable)t).Rows;//is 10
  </code></pre>
  
  <p>//I want set normalFont for all the text  but defaultCell.Phrase is always null</p>
  
  <pre><code>((PdfPTable)t).DefaultCell.Phrase = new Phrase() { Font = fontNormal };
  </code></pre>
  
  <p>//how to find text in pdfptable to set the font?</p>
  
  <pre><code>                    }
                     document.Add(t);
  </code></pre>