The PDF Renderer is an open source, all Java library which renders
PDF documents to the screen using Java2D.

Some features:

 * view PDFs in your own app
 * print-preview before exporting PDF files
 * render PDFs to PNGs in a server-side web application
 * view PDFs in a 3D scene
 * draw on top of PDFs and annotate them in a networked viewer

WWW: https://pdf-renderer.dev.java.net/