GKGowthamraj Kumar Syncfusion Team July 22, 2019 08:20 AM
Thank you for providing details,
We are tried to reproduce the reported issue with provided details. We have created a simple sample with provided details and checked the conversion in Linux. Thai characters are preserved properly in the conversion. This issue may occurs due to missing of required font to preserve the text in Linux environment. Please make sure the required fonts files are installed properly in the machine and ensured the html file is displayed properly in web browser on Linux.
We have attached the output document from below link,
How to check web display correctly in linux server if my server does not have GUI or I can use other linux machine to check web display.
GKGowthamraj Kumar Syncfusion Team July 31, 2019 07:58 AM
Thank you for your update.
Kindly add/install the required font files to your Linux machine and try the conversion. The reported issue only occurs if the required font is not available in the machine where the conversion take place. However, you can use any other Linux machine (configuration should be similar to your server machine) to check the html file is display properly or not. And please make sure whether the machines are having the same fonts.
SUSutthipongAugust 13, 2019 05:53 AM
After install xfonts package in my server machine.The converted document display correctly.
Maybe I forget to install it because it was server.
GKGowthamraj Kumar Syncfusion Team August 14, 2019 01:55 AM