This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
Since you posted this in the JSP forum: by "jasper" do you mean the JSP compiler that comes with Tomcat? If so, then the answer is no, because Jasper has nothing to do with PDFs.
If, on the other hand, you meant the reporting package "JasperReports" -in which case this post would have been better suited for the Other Open Source Projects forum where JR is discussed- then the answer is also no, because JR is used to create PDFs (amongst other formats), not edit them.