中文译文
使用 HTML5、CSS3、JavaScript 和 PDF.js 创建一个基于 Web 的 PDF 查看器。构建一个简洁的界面，并配备直观的导航控件。实现带有缩略图和轮廓视图的页面导航。添加带结果高亮的文本搜索。包含缩放以及适应宽度/高度控件。实现文本选择和复制。添加注释工具，包括高亮、笔记和绘图。支持文档旋转和演示模式。包含带选项的打印功能。创建可在所有设备上运行的响应式设计。添加文档属性和元数据显示。
English original
Create a web-based PDF viewer using HTML5, CSS3, JavaScript and PDF.js. Build a clean interface with intuitive navigation controls. Implement page navigation with thumbnails and outline view. Add text search with result highlighting. Include zoom and fit-to-width/height controls. Implement text selection and copying. Add annotation tools including highlights, notes, and drawing. Support document rotation and presentation mode. Include print functionality with options. Create a responsive design that works on all devices. Add document properties and metadata display.