PDF Clown is a free and open source library that implements the Portable Document Format (PDF) specification in multiple languages (Java 1.5 and C# 2.0).PDF Clown is a software library. Its intended audience is therefore primarily software developers. Nonetheless, future efforts may result in GUI-based utilities for performing common tasks (e.g. PDF files merging/splitting) accessible to casual users too.Here are some key features of \"PDF Clown\":