This application will overlay one document with the content of another document
usage: java -jar pdfbox-app-x.y.z.jar Overlay <overlay.pdf> <document.pdf> <result.pdf>
If the overlay document contains more than one page the pages are overlayed to the document on order e.g. if the document has 10 pages and the overlay contains 2 pages the order is Document: 1234567890 Overlay: 1212121212