PDFCube 介绍
PDFCube 是一个基于 OpenGL 开发的 PDF 阅读器。adds a compiz/Keynote-like spinning cube
effect to your PDF presentations (including beamer and prosper ones). As a
bonus, you can zoom on 5 predefined areas of any presentation page with a
smooth zooming effect.
PDFCube 官网
http://code.100allora.it/pdfcube/
