I'm using Jasper Assistant in Eclipse and I have a problem showing Farsi Fonts in PDF format.I have created a specific style to use with PDFEncoding = Identity-H but when I run the report I get an exception saying:

ExceptionConverter: java.io.UnsupportedEncodingException: Identity-H
at sun.io.Converters.getConverterClass(Unknown Source)


I think the problem is with the jar file I'm using which is iText 1.3.1.
Any suggestion on what jar file to use (and where to download it from) or what to do is appreciated