参考文档Web组件预览PDF文件实现案例:https://gitee.com/harmonyos-cases/cases/tree/master/CommonAppDevelopment/feature/webpdfviewer
参考文档Web组件预览PDF文件实现案例:https://gitee.com/harmonyos-cases/cases/tree/master/CommonAppDevelopment/feature/webpdfviewer