pc端插件: https://pdfobject.com/
使用：
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.pdfobject-container { height: 800px;}
.pdfobject { border: 1px solid #666; }
</style>
</head>
<body>
<div id="example1"></div>
<script type="text/javascript" src="../jquery.min.js"></script>
<script type="text/javascript" src="./pdfobject.min.js"></script>
<script>PDFObject.embed("./demo.pdf", "#example1");</script>
</body>
</html>