将PDF文档转换为XML文件，最好使用ITextSharp

I have a PDF document that I need to read data from. What I discovered is that when I convert said PDF to an XML document, there are convenient tags I can read from in there and so I need a way to in code, convert my files to xml, so I can, using mapper files, read the data content to database.I have a PDF document that I need to read data