这个是DjVu的阅读器。DjVu是于1996年开发成功的一项新的图片压缩技术，是一个公开标准。作为一种新的彩色文件压缩技术，DjVu在纸质世界和比特世界之间搭起了一座桥梁。它使得高质量的扫描图像可以轻易地在因特网上进行发布。-This is a DjVu reader. DjVu was developed in 1996, a new image compression technology, is an open standard. As a new color file compression technology, DjVu bits in the paper world and has built a bridge between the world. It enables high-quality scanned images can be easily published on the Internet.