2
我想用pdfmake生成带有水印的pdf。但是在使用属性“watermark:'test'”时,pdf没有被生成。在控制台上弹出一个错误说: “样式'normal'中的'未定义字体'未在文档定义的字体部分中定义。”如何使用PDFMAKE JS库生成带有水印的PDF。PDFMAKE没有生成PDF的水印
<html>
<head>
<script src='https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.20/pdfmake.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.20/vfs_fonts.js'></script>
<script type="text/javascript">
function myFunction()
{
var docDefinition = {
watermark:'test',
background: 'simple text',
content: 'This is an sample PDF printed with pdfMake'
};
pdfMake.createPdf(docDefinition).download('Report.pdf');
}
</script>
</head>
<body>
<button type="button" onclick="myFunction()">Click Me!</button>
</body>
</html>