Bullet points are appearing as unidentified characters(rectangular boxes) while generating pdf

Hi,
In my application, I am passing the inner html content as a string to aspose words document generator and generating pdf. This code works fine for ordered lists
and unordered lists
when deployed(weblogic server) on my local windows machine. When I deploy the same code on Linux machine, the bullet points appear as rectangular boxes while ordered lists works fine. We are using Libertine fonts on Linux and the path is also set in the code. Attaching code.
What am i missing?
Thanks,
Noel Paul

Hi
Thank you for additional information. The problem s might occur because Symbol font is not installed on the server. This font is not actually used in the document, but it is used for rendering bullets. So please try installing Symbol font on the server and let me know if this helps.
Best regards.