TCPDF中的泰米尔语字体渲染问题

We have developed a Tamil text PDF generation using TCPDF (https://github.com/tecnickcom/tcpdf), we used the following tamil fonts

  1. tamilavarangal.z,tamilavarangal.php
  2. akshar.z,akshar.php
  3. tau.z,tau.php
  4. vaigai.z,vaigai.php
  5. tscu.z,tscu.php

But the tamil text in PDF Generated as below

enter image description here

We followed the below process also, PHP DOMPDF html to PDF converter font rendering issue in v.0.6.1

Eventhough the Tamil Text is not rendering properly.

Kindly let us know your solutions.