文本抽取工具，支持中文，把pdf的document转换成lucene document。-Document drop instruments。support Chinese。convert pdf‘s document to lucene document。

Ant is a build system that was developed for the Jakarta Tomcat project and was used internally at Sun. It was originally developed by James Davidson <duncan@eng.sun.com> and has been extended by others including myself. When Jakart

采用jconvert xpdf等开源框架，将pdf文件转换html。-the pdf documentformat convert html document。

xpdf只是一个软件，通过java采用命令行调用，并获取输出结果，如此来说使用简单，但是相当受限，如：无法跨平台，无法处理特定格式（表格等），无法处理图片和其他附件。这种调用必定限制了它的灵活性。-xpdf just a software, using the command line call by java, and get the output, so it is easy to use, but quite limited, such as: Can not cross-platform