Thanks for sharing the source document. I have tested the PDF to HTML conversion scenario using Aspose.Pdf for .NET 11.6.0 and noticed the reported issues, so logged following tickets in our issue tracking system for further investigation and rectification. We will notify you as soon as these issues are resolved.
PDFNEWNET-40738: Local hyperlinks are missing in PDF to HTML conversion.
PDFNEWNET-40739: Bold font style rendered as regular in PDF to HTML conversion.
PDFNEWNET-40740: Underlines rendered incorrectly in PDF to HTML conversion.
We are sorry for the inconvenience caused.