title: CGPDFPageRef special characters
body: <p>I am trying to parse some PDF files to get the texts from it, but I have some problems with reading special characters like :  ț ă â ' " and others. </p>
  
  <p>I have next operators : </p>
  
  <pre><code>CGPDFOperatorTableSetCallback (table, "MP", &amp;op_MP)
  CGPDFOperatorTableSetCallback (table, "DP", &amp;op_DP)
  
  CGPDFOperatorTableSetCallback (table, "BMC", &amp;op_BMC)
  CGPDFOperatorTableSetCallback (table, "BDC", &amp;op_BDC)
  CGPDFOperatorTableSetCallback (table, "EMC", &amp;op_EMC)
  CGPDFOperatorTableSetCallback(table, "TJ", arrayCallback)
  CGPDFOperatorTableSetCallback(table, "Tj", stringCallback)
  </code></pre>
  
  <p>Instead of those special characters, I get Ñ Ó ß and so on...
  Is there something I miss?</p>
  
  <p>Thanks</p>