I tested convert html to pdf and find Arabic not 100% correct.
Testing code: Convert HTML to PDF
Testing Environment and Library:
MacOS Big Sur 11.5.2A
com.aspose:aspose-html:21.6:jdk11
com.aspose:aspose-pdf:21.7
JDK-8.
Moreover, Does Aspose has a clear list of languages 100% correct about convert from html to PDF?