java library to output bar/line graphs to PDF document

I am looking for a library that supports printing of bar/line graphs directly into PDF. The graphs need not be shown on screen, they can be directly output to the PDF d开发者_如何学JAVAocument.

Would iText + JFreeChart make it? One problem is that it is on GPL. http://viralpatel.net/blogs/2010/02/generate-pie-chart-bar-graph-in-pdf-using-itext-jfreechart.html