Thank you for contacting us.
Yes, the limitation in Silverlight still exists. There is no way to access the fonts that are installed on the machine in order to embed them in the PDF file. However, as Petya noted, you can use the WPF version through a service in order to achieve the desired functionality.
If you have further questions do not hesitate to contact us.
Check out Telerik Analytics, the service which allows developers to discover app usage patterns, analyze user data, log exceptions, solve problems and profile application performance at run time. Watch the videos
and start improving your app based on facts, not hunches.