title: Overwrite pdf file using tcpdf liberary
body: <p>I am trying to write pdf file using TCPDF open source liberay.</p>
  
  <p>i use following code..</p>
  
  <pre><code>$html = &lt;&lt;&lt;EOD
  $prod
  EOD;
  
  $pdf-&gt;writeHTMLCell($w=0, $h=0, $x='', $y='', $html, $border=0, $ln=1, $fill=0, $reseth=true, $align='', $autopadding=true);
  
  $pdf-&gt;Output('pricepdf.pdf', 'FD');
  </code></pre>
  
  <p>I have dumped $html, and its okay.</p>
  
  <p>now, the problem is with writing pdf file, I can't write the file .either no error is displayed. 
  Onething, i should clear that, a file with same name is already exists in the given folder. </p>
  
  <p>What i want is, to ovewrite 'pricepdf.pdf' file everytime, i run the script</p>
  
  <p>Please guide me regarding this, Is this overwrite problem? or something else is creating problem? I am stuck at the point...</p>