We have tested the scenario with Aspose.PDF for Java 19.4 and were still unable to observe the issue. Please check following used code snippet and attached output PDF document:
HtmlLoadOptions options = new HtmlLoadOptions();
Document doc = new Document(dataDir + "chinesehtml.html", options);
doc.save(dataDir + "HTMLtoPDF_19.4.pdf");
HTMLtoPDF_19.4.pdf (185.7 KB)
Would you please try to set font directory as following before performing conversion. Please try specifying the exact path where installed fonts are present in your system:
In case issue still persists, please share some information about your environment i.e. OS Name and version, JDK Version you are using, Application Type, etc. We will further proceed to help you accordingly. It would also be helpful if you can please share a simple console application, which is able to reproduce the error.