PDF Clown

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PDF Clown
Developed by	Stefano Chizzolini
OS	Cross-platform
Platform	Java, .NET
Genre	Library (Java 1.5, C# 2.0)
License	GPL or LGPL
Website	sourceforge.net/projects/clown

PDF Clown is an Open Source library for creating and manipulating PDF files in Java 1.5 and C# 2.0. It is distributed under the GNU General Public License, with the LGPL as alternative license.

It features multiple abstraction layers to satisfy different programming styles: from the lower level (PDF object model) to the higher (PDF document structure and content streaming).

The project was started in 2006, and is being actively developed. Many features have been implemented, but there are many planned improvements. PDF specification 1.6 is partially implemented.

The tool set offers PDF document splitting, document merging, and low-level access to every single PDF object inside the internal structure.