WinTariff is a program that collects and processes information about telephone calls. It receives data from an office PBX about the date/time, duration, and dialled number of phone calls, then calculates the cost of the call and determines the direction. Various reports about all calls during the month, calls to a certain internal subscriber, etc. can be generated. A data collection module is available for Linux/FreeBSD.
jPDFAssemble is a Java library to assemble PDF files. It can combine, merge, or split PDF documents, and allows the addition or manipulation of bookmarks. It can save resulting documents to the local filesystem or to an output stream, to be able to serve the documents directly to a client browser when working within a J2EE server. jPDFAssemble is built on top of Qoppa's proprietary PDF technology, so you do not have to install any third party software or drivers. It is also 100% Java, so it is completely platform-independent.