可以使用html2canvas和jspdf两个js插件实现。
完整示例代码：
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum=1.0,minimum=1.0,user-scalable=0" />
<title>BFW NEW PAGE</title>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/html2canvas.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/jspdf.js"></script>
<style>
.elearea{
width: 800px;
height: 600px;
overflow: hidden;
}
</style>
</head>
<body>
<div class="elearea">
<h1>Hello, World!</h1>
<p>This is a simple example of using html2canvas.</p>
<img src='//repo.bfw.wiki/bfwrepo/image/5d6539385ad28.png' />
</div>
<div class="elearea">
<h1>你好</h1>
<p> wosh副标题</p>
<img src='//repo.bfw.wiki/bfwrepo/image/5d65ea7d8bc8b.png' />
</div>
<button id="convertButton">图片分页保存到pdf文件</button>
<script>
var elements = document.getElementsByClassName('elearea');
var pdf = new jsPDF('landscape', 'px', [800,600]);
document.getElementById("convertButton").addEventListener("click", function() {
var gli=0;
for (var i = 0; i < elements.length; i++) {
html2canvas(elements[i],{allowTaint: false,useCORS: true,backgroundColor: "transparent",width: 800,height: 600 }).then(function(canvas) {
var image = canvas.toDataURL("image/png");
pdf.addImage(image, 'JPEG', 0, 0,800, 600, '', 'FAST');
gli++
if(gli==elements.length){
pdf.save('test1.pdf');
}else{
pdf.addPage();
}
});
;
}
});
</script>
</body>
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