Free Java Reporting Library
Online service for PDF conversion (to PDF)
Modular XSL-FO Implementation for Java.
Java Web Printer
Simple Reporting System
neoHort:Java PDF&XLSX runtime builder-based iText&JExcelAPI&Apache POI
Your Java Swing PDF Viewer/Reader cross platform
neoHort:Java PDF&XLS runtime builder-based iText(v.5.*)&JExcelAPI..
Extensions for Apache Ant for creating documentations
Your electronic guitar songbook
java API for tabular reports and pivot tables
Merge your Scans! :)