Java Pretty Printer Library Reviews

Hello, the project is very good, just what I need. but I think it is very complex form of employment, you should give examples, from the most basic to the most complex. I work at a software generates Java code for learning and a StringBuilder variable-have the code generated by my software, but I could not make use of indentation using his classes would greatly appreciate your help, because it is the only library available for this case. Thank you for your attention.