libcpdf is a C/C++/.Net/Java/Python library version of the Coherent PDF Command Line Tools, which are available in binary form:
http://github.com/coherentgraphics/cpdf-binaries
and also in source form.
It is distributed under the AGPL - see LICENSE.md. If you are unable to abide by the terms of the AGPL, you will need a commercial license.
For commercial licenses, email contact@coherentgraphics.co.uk or visit https://www.coherentpdf.com/
The website for commercial sales of the Command Line Tools and C/C++/.NET/Java/Python APIs is
Contact: contact@coherentgraphics.co.uk
See the individual README in the directory for your platform.
See cpdflibmanual.pdf for C/C++ pycpdflibmanual.pdf for Python dotnetcpdflibmanual.pdf for .NET jcpdflibmanual.pdf for Java