一个对PDF文件进行操作的第三方dll，该dll可以完美的创建各种格式的PDF，包括基本演示PDF文件的创建，文本的写入，插入图片，插入自定义图形，创建表格，文件加密，甚至创建样式表，交互式表单，分页计数等，支持自定义中文。该文件为完美使用版本，完全可以满足用户的一般开发需求。-A PDF file for the operation of third-party dll, the dll can be perfect to create a variety of formats of PDF, including basic presentation PDF file creation, write text, insert pictures, insert customized graphics, create tables, file encryption, even the creation of style sheets, interactive forms, page count and so on, to support the Chinese custom. The paper used for the perfect version, fully meet the user