PDF是一种包含文本、图像、数据等的文档文件格式。这种文档类型与操作系统无关。它是一个压缩文档和矢量图形的开放标准。如果浏览器上安装了PDF插件,则可以在web浏览器中查看。
PDF is a document file format that contains text, images, data etc. This document type is Operating System independent. It is an open standard that compresses a document and vector graphics. It can be viewed in web browsers if the PDF plug-in is installed on the browser.