origami is a Ruby framework designed to parse, analyze, edit, manipulate, forge, exploit PDF files. This is NOT a PDF rendering library. It aims at providing a scripting tool to generate and/or analyze malicious PDF files. As well, it can be used to create on-the-fly customized PDFs, or to inject (evil) code into already existing documents.
You can download it from the following link: https://packetstormsecurity.com/files/download/79045/origami-1.0.0-beta0.tar.gz
Source: https://packetstormsecurity.com/files/79045/Origami-PDF-Exploit-Creator.html