title: Squared characters issue on wkhtmltopdf
body: <p>I've installed wkhtmltopdf on Centos 5.5. (Since there was library issues, it's been 4 days).
  It's partly working now. I said partly because, all pdfs which was created by wkhtmltopdf include squares instead of text?</p>
  
  <p>What can I do? I've searched google, but I couldn't find anything.</p>
  
  <p>Appreciate your help. </p>