title: Indian currency symbol not show when convert html2pdf in php
body: <p>In my HTML report i used Indian new currency(₹) symbol. When I convert HTML report to PDF using html2pdf extension, all currency symbol change to question mark symbol. How can I prevent this from happening? </p>
  
  <p>In HTML:
  <img src="https://i.stack.imgur.com/3TOtE.png" alt="enter image description here"></p>
  
  <p>After convert to pdf:
  In PDF:
  <img src="https://i.stack.imgur.com/NkSdN.png" alt="enter image description here"></p>