title: How to calculate font size from pdf in php
body: <p>I have same code</p>
  
  <pre><code>q
  0 0 283.465 170.079 re
  W n
  BT
  1 0 0 0 k
  /GS0 gs
  /C2_0 1 Tf
  10 0 0 10 143.4331 134.0855 Tm
  &lt;01F60218020B020802150210020F0208021E02100227&gt;Tj
  ET 
  Q
  </code></pre>
  
  <p>How to calculate the fontSize for /C2_0 1 Tf ?</p>
  
  <p>I need example if posible.
  My english is not good then sorry if questions is wrong.</p>