title: why arrows are not working with pdf?
body: <p>am trying to conversion of html to pdf using dompdf. Every thing is working fine. my code  have upwards and downwards arrows in my html like  <code>&amp;uarr;</code> <code>&amp;darr;</code>. these are working fine with html.</p>
  
  <p>but after conversion on pdf file these are looking with  <code>?</code>  only. </p>
  
  <p>am using version dompdf_0-6-0_beta3 </p>
  
  <p>How i can solve this?</p>