Cross-platform SDK for creating and modifying PDF documents
Online service for PDF conversion (to PDF)
This is a small PDF editor based on OpenPdf core and AndroidPdfViewer
BRIC is a powerful tool for batch image processing.
Application to modify pdf files.
Your Java Swing PDF Viewer/Reader cross platform
PDF Reader (It converts PDFs to JPGs first, to be able to read it)
An open source Java software to manipulate PDF files.