title: Problem with PdfTextExtractor in itext!
body: <p>first excuse me for my bad english!
  I want to search in pdf document for a word like "Hello" . So I must read each page in pdf by PdfTextExtractor. I did it well. I can read all words in each page separately an save it in string buffer.
  but when i push this code in For loop ,(for example from page 1 to 7 for search in it) earlier page's words will remain in string buffer.I hop you understand my problem. 
  Tanx all.
  this is my code :</p>
  
  <pre><code>        PdfReader reader2 = new PdfReader(openFileDialog1.FileName);
          int pagen = reader2.NumberOfPages;
          reader2.Close();
          ITextExtractionStrategy its = new iTextSharp.text.pdf.parser.SimpleTextExtractionStrategy();
          for (int i = 1; i &lt; pagen; i++)
          {
              textBox1.Text = "";
              PdfReader reader = new PdfReader(openFileDialog1.FileName);
  
              String  s = PdfTextExtractor.GetTextFromPage(reader, i, its);
              //MessageBox.Show(s.Length.ToString());
              //PdfTextArray h = new PdfTextArray(s);
  
              //
              // s = "";
              s = Encoding.UTF8.GetString(ASCIIEncoding.Convert(Encoding.Default, Encoding.UTF8, Encoding.Default.GetBytes(s)));
              textBox1.Text = s;
              reader.Close();
  </code></pre>
  
  <p>}</p>