Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....在Aspose.PDF for Java中,每个PDF文档是一个页面集合,每个页面包含一个工件集合。...将背景图像添加到PDF页面。 package com.aspose.pdf.examples ; import java...