Tried using Itext version 2.1.5 and 2.1.7. But the alignment of the pdf was not good. Also it was not able to render some of the RTF content properly.
When I searched it was found that it was still under development RTF to PDF conversion in iText and the classes corresponding to conversion were available in itext-rtf.jar.
Hence I tried using the latest itext version like 5.0.0 and 5.0.2 and found that the corresponding conversion classes were found missing in latest versions.
So I assume that they stopped such conversion in latest itext. Please correct me if my understanding is wrong.
No prison can hold Chairface Chippendale. And on a totally different topic ... my stuff: