在 Angularjs 中使用 pdfMake 从 HTML 生成 PDF
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【中文标题】在 Angularjs 中使用 pdfMake 从 HTML 生成 PDF【英文标题】：Generate PDF from HTML using pdfMake in Angularjs 【发布时间】：2016-03-07 02:53:03 【问题描述】：我正在尝试使用pdfMake 和Angular 从我的html 创建一个PDF（我也尝试过jsPDF，但也无法让它工作）。我尝试在我的 Angular 控制器中使用以下代码：
var blob = new Blob([document.getElementById('exportable').innerHTML])
var docDefinition =
content: [blob]
pdfMake.createPdf(docDefinition).open();
但我收到以下错误：
无法识别的文档结构："_margin":null"。
我的 HTML 由 div exportable 中的两个简单表格组成。
如果有人知道此问题的解决方案，或从 Angular 将 HTML 转换为 PDF 的其他方法，请帮助。
非常感谢任何帮助！
【问题讨论】：
【参考方案1】：好的，我想通了。
您将需要html2canvas 和pdfmake。您不需要在您的 app.js 中进行任何注入，只需包含在您的脚本标签中
在要创建 PDF 的 div 上，添加如下 ID 名称：
<div id="exportthis">
在您的 Angular 控制器中，在您对 html2canvas 的调用中使用 div 的 id：
使用 toDataURL() 将画布更改为图像
然后在 pdfmake 的 docDefinition 中将图像分配给内容。
控制器中完成的代码将如下所示：
html2canvas(document.getElementById('exportthis'),
onrendered: function (canvas)
var data = canvas.toDataURL();
var docDefinition =
content: [
image: data,
width: 500,
]
;
pdfMake.createPdf(docDefinition).download("Score_Details.pdf");
);
我希望这对其他人有所帮助。编码愉快！
【讨论】：
如果图片很大，可以创建多个页面吗？ 这应该不进入控制器，因为您正在访问 DOM。 如果我们试图打印整个视图，其中包括许多子视图的视图。您知道一个视图，其中包含指向其他控制器的指令的视图。这是否也会保持网页的完整性，包括视图中不存在的 css。 当我这样做时，我没有得到整个元素。相反，我得到了相邻元素 + 我想要的部分元素。 如果文档大于一页，这将不起作用。【参考方案2】：我知道它与这篇文章无关，但可能会帮助其他人在客户端将 HTML 转换为 PDF。如果您使用剑道，这是一个简单的解决方案。它还保留了 css（大多数情况下）。
var generatePDF = function()
kendo.drawing.drawDOM($("#formConfirmation")).then(function(group)
kendo.drawing.pdf.saveAs(group, "Converted PDF.pdf");
);
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<!-- Latest compiled and minified javascript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="//kendo.cdn.telerik.com/2016.3.914/js/kendo.all.min.js"></script>
</head>
<body>
<br/>
<button class="btn btn-primary" onclick="generatePDF()"><i class="fa fa-save"></i> Save as PDF</button>
<br/>
<br/>
<div id="formConfirmation">
<div class="container theme-showcase" role="main">
<!-- Main jumbotron for a primary marketing message or call to action -->
<div class="jumbotron">
<h1>Theme example</h1>
<p>This is a template showcasing the optional theme stylesheet included in Bootstrap. Use it as a starting point to create something more unique by building on or modifying it.</p>
</div>
<div class="page-header">
<h1>Buttons</h1>
</div>
<p>
<button type="button" class="btn btn-lg btn-default">Default</button>
<button type="button" class="btn btn-lg btn-primary">Primary</button>
<button type="button" class="btn btn-lg btn-success">Success</button>
<button type="button" class="btn btn-lg btn-info">Info</button>
<button type="button" class="btn btn-lg btn-warning">Warning</button>
<button type="button" class="btn btn-lg btn-danger">Danger</button>
<button type="button" class="btn btn-lg btn-link">Link</button>
</p>
<p>
<button type="button" class="btn btn-default">Default</button>
<button type="button" class="btn btn-primary">Primary</button>
<button type="button" class="btn btn-success">Success</button>
<button type="button" class="btn btn-info">Info</button>
<button type="button" class="btn btn-warning">Warning</button>
<button type="button" class="btn btn-danger">Danger</button>
<button type="button" class="btn btn-link">Link</button>
</p>
<p>
<button type="button" class="btn btn-sm btn-default">Default</button>
<button type="button" class="btn btn-sm btn-primary">Primary</button>
<button type="button" class="btn btn-sm btn-success">Success</button>
<button type="button" class="btn btn-sm btn-info">Info</button>
<button type="button" class="btn btn-sm btn-warning">Warning</button>
<button type="button" class="btn btn-sm btn-danger">Danger</button>
<button type="button" class="btn btn-sm btn-link">Link</button>
</p>
<p>
<button type="button" class="btn btn-xs btn-default">Default</button>
<button type="button" class="btn btn-xs btn-primary">Primary</button>
<button type="button" class="btn btn-xs btn-success">Success</button>
<button type="button" class="btn btn-xs btn-info">Info</button>
<button type="button" class="btn btn-xs btn-warning">Warning</button>
<button type="button" class="btn btn-xs btn-danger">Danger</button>
<button type="button" class="btn btn-xs btn-link">Link</button>
</p>
<div class="page-header">
<h1>Tables</h1>
</div>
<div class="row">
<div class="col-md-6">
<table class="table">
<thead>
<tr>
<th>#</th>
<th>First Name</th>
<th>Last Name</th>
<th>Username</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>Mark</td>
<td>Otto</td>
<td>@mdo</td>
</tr>
<tr>
<td>2</td>
<td>Jacob</td>
<td>Thornton</td>
<td>@fat</td>
</tr>
<tr>
<td>3</td>
<td>Larry</td>
<td>the Bird</td>
<td>@twitter</td>
</tr>
</tbody>
</table>
</div>
<div class="col-md-6">
<table class="table table-striped">
<thead>
<tr>
<th>#</th>
<th>First Name</th>
<th>Last Name</th>
<th>Username</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>Mark</td>
<td>Otto</td>
<td>@mdo</td>
</tr>
<tr>
<td>2</td>
<td>Jacob</td>
<td>Thornton</td>
<td>@fat</td>
</tr>
<tr>
<td>3</td>
<td>Larry</td>
<td>the Bird</td>
<td>@twitter</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="row">
<div class="col-md-6">
<table class="table table-bordered">
<thead>
<tr>
<th>#</th>
<th>First Name</th>
<th>Last Name</th>
<th>Username</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="2">1</td>
<td>Mark</td>
<td>Otto</td>
<td>@mdo</td>
</tr>
<tr>
<td>Mark</td>
<td>Otto</td>
<td>@TwBootstrap</td>
</tr>
<tr>
<td>2</td>
<td>Jacob</td>
<td>Thornton</td>
<td>@fat</td>
</tr>
<tr>
<td>3</td>
<td colspan="2">Larry the Bird</td>
<td>@twitter</td>
</tr>
</tbody>
</table>
</div>
<div class="col-md-6">
<table class="table table-condensed">
<thead>
<tr>
<th>#</th>
<th>First Name</th>
<th>Last Name</th>
<th>Username</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>Mark</td>
<td>Otto</td>
<td>@mdo</td>
</tr>
<tr>
<td>2</td>
<td>Jacob</td>
<td>Thornton</td>
<td>@fat</td>
</tr>
<tr>
<td>3</td>
<td colspan="2">Larry the Bird</td>
<td>@twitter</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="page-header">
<h1>Thumbnails</h1>
</div>
<img data-src="holder.js/200x200" class="img-thumbnail" >
<div class="page-header">
<h1>Labels</h1>
</div>
<h1>
<span class="label label-default">Default</span>
<span class="label label-primary">Primary</span>
<span class="label label-success">Success</span>
<span class="label label-info">Info</span>
<span class="label label-warning">Warning</span>
<span class="label label-danger">Danger</span>
</h1>
<h2>
<span class="label label-default">Default</span>
<span class="label label-primary">Primary</span>
<span class="label label-success">Success</span>
<span class="label label-info">Info</span>
<span class="label label-warning">Warning</span>
<span class="label label-danger">Danger</span>
</h2>
<h3>
<span class="label label-default">Default</span>
<span class="label label-primary">Primary</span>
<span class="label label-success">Success</span>
<span class="label label-info">Info</span>
<span class="label label-warning">Warning</span>
<span class="label label-danger">Danger</span>
</h3>
<h4>
<span class="label label-default">Default</span>
<span class="label label-primary">Primary</span>
<span class="label label-success">Success</span>
<span class="label label-info">Info</span>
<span class="label label-warning">Warning</span>
<span class="label label-danger">Danger</span>
</h4>
<h5>
<span class="label label-default">Default</span>
<span class="label label-primary">Primary</span>
<span class="label label-success">Success</span>
<span class="label label-info">Info</span>
<span class="label label-warning">Warning</span>
<span class="label label-danger">Danger</span>
</h5>
<h6>
<span class="label label-default">Default</span>
<span class="label label-primary">Primary</span>
<span class="label label-success">Success</span>
<span class="label label-info">Info</span>
<span class="label label-warning">Warning</span>
<span class="label label-danger">Danger</span>
</h6>
<p>
<span class="label label-default">Default</span>
<span class="label label-primary">Primary</span>
<span class="label label-success">Success</span>
<span class="label label-info">Info</span>
<span class="label label-warning">Warning</span>
<span class="label label-danger">Danger</span>
</p>
<div class="page-header">
<h1>Badges</h1>
</div>
<p>
<a href="#">Inbox <span class="badge">42</span></a>
</p>
<ul class="nav nav-pills" role="tablist">
<li role="presentation" class="active"><a href="#">Home <span class="badge">42</span></a>
</li>
<li role="presentation"><a href="#">Profile</a>
</li>
<li role="presentation"><a href="#">Messages <span class="badge">3</span></a>
</li>
</ul>
<div class="page-header">
<h1>Dropdown menus</h1>
</div>
<div class="dropdown theme-dropdown clearfix">
<a id="dropdownMenu1" href="#" class="sr-only dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
<li class="active"><a href="#">Action</a>
</li>
<li><a href="#">Another action</a>
</li>
<li><a href="#">Something else here</a>
</li>
<li role="separator" class="divider"></li>
<li><a href="#">Separated link</a>
</li>
</ul>
</div>
<div class="page-header">
<h1>Navs</h1>
</div>
<ul class="nav nav-tabs" role="tablist">
<li role="presentation" class="active"><a href="#">Home</a>
</li>
<li role="presentation"><a href="#">Profile</a>
</li>
<li role="presentation"><a href="#">Messages</a>
</li>
</ul>
<ul class="nav nav-pills" role="tablist">
<li role="presentation" class="active"><a href="#">Home</a>
</li>
<li role="presentation"><a href="#">Profile</a>
</li>
<li role="presentation"><a href="#">Messages</a>
</li>
</ul>
<div class="page-header">
<h1>Navbars</h1>
</div>
<nav class="navbar navbar-default">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Project name</a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a>
</li>
<li><a href="#about">About</a>
</li>
<li><a href="#contact">Contact</a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a>
</li>
<li><a href="#">Another action</a>
</li>
<li><a href="#">Something else here</a>
</li>
<li role="separator" class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a>
</li>
<li><a href="#">One more separated link</a>
</li>
</ul>
</li>
</ul>
</div>
<!--/.nav-collapse -->
</div>
</nav>
<nav class="navbar navbar-inverse">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Project name</a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a>
</li>
<li><a href="#about">About</a>
</li>
<li><a href="#contact">Contact</a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a>
</li>
<li><a href="#">Another action</a>
</li>
<li><a href="#">Something else here</a>
</li>
<li role="separator" class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a>
</li>
<li><a href="#">One more separated link</a>
</li>
</ul>
</li>
</ul>
</div>
<!--/.nav-collapse -->
</div>
</nav>
<div class="page-header">
<h1>Alerts</h1>
</div>
<div class="alert alert-success" role="alert">
<strong>Well done!</strong> You successfully read this important alert message.
</div>
<div class="alert alert-info" role="alert">
<strong>Heads up!</strong> This alert needs your attention, but it's not super important.
</div>
<div class="alert alert-warning" role="alert">
<strong>Warning!</strong> Best check yo self, you're not looking too good.
</div>
<div class="alert alert-danger" role="alert">
<strong>Oh snap!</strong> Change a few things up and try submitting again.
</div>
<div class="page-header">
<h1>Progress bars</h1>
</div>
<div class="progress">
<div class="progress-bar" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width: 60%;"><span class="sr-only">60% Complete</span>
</div>
</div>
<div class="progress">
<div class="progress-bar progress-bar-success" role="progressbar" aria-valuenow="40" aria-valuemin="0" aria-valuemax="100" style="width: 40%"><span class="sr-only">40% Complete (success)</span>
</div>
</div>
<div class="progress">
<div class="progress-bar progress-bar-info" role="progressbar" aria-valuenow="20" aria-valuemin="0" aria-valuemax="100" style="width: 20%"><span class="sr-only">20% Complete</span>
</div>
</div>
<div class="progress">
<div class="progress-bar progress-bar-warning" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width: 60%"><span class="sr-only">60% Complete (warning)</span>
</div>
</div>
<div class="progress">
<div class="progress-bar progress-bar-danger" role="progressbar" aria-valuenow="80" aria-valuemin="0" aria-valuemax="100" style="width: 80%"><span class="sr-only">80% Complete (danger)</span>
</div>
</div>
<div class="progress">
<div class="progress-bar progress-bar-striped" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width: 60%"><span class="sr-only">60% Complete</span>
</div>
</div>
<div class="progress">
<div class="progress-bar progress-bar-success" style="width: 35%"><span class="sr-only">35% Complete (success)</span>
</div>
<div class="progress-bar progress-bar-warning" style="width: 20%"><span class="sr-only">20% Complete (warning)</span>
</div>
<div class="progress-bar progress-bar-danger" style="width: 10%"><span class="sr-only">10% Complete (danger)</span>
</div>
</div>
<div class="page-header">
<h1>List groups</h1>
</div>
<div class="row">
<div class="col-sm-4">
<ul class="list-group">
<li class="list-group-item">Cras justo odio</li>
<li class="list-group-item">Dapibus ac facilisis in</li>
<li class="list-group-item">Morbi leo risus</li>
<li class="list-group-item">Porta ac consectetur ac</li>
<li class="list-group-item">Vestibulum at eros</li>
</ul>
</div>
<!-- /.col-sm-4 -->
<div class="col-sm-4">
<div class="list-group">
<a href="#" class="list-group-item active">
Cras justo odio
</a>
<a href="#" class="list-group-item">Dapibus ac facilisis in</a>
<a href="#" class="list-group-item">Morbi leo risus</a>
<a href="#" class="list-group-item">Porta ac consectetur ac</a>
<a href="#" class="list-group-item">Vestibulum at eros</a>
</div>
</div>
<!-- /.col-sm-4 -->
<div class="col-sm-4">
<div class="list-group">
<a href="#" class="list-group-item active">
<h4 class="list-group-item-heading">List group item heading</h4>
<p class="list-group-item-text">Donec id elit non mi porta gravida at eget metus. Maecenas sed diam eget risus varius blandit.</p>
</a>
<a href="#" class="list-group-item">
<h4 class="list-group-item-heading">List group item heading</h4>
<p class="list-group-item-text">Donec id elit non mi porta gravida at eget metus. Maecenas sed diam eget risus varius blandit.</p>
</a>
<a href="#" class="list-group-item">
<h4 class="list-group-item-heading">List group item heading</h4>
<p class="list-group-item-text">Donec id elit non mi porta gravida at eget metus. Maecenas sed diam eget risus varius blandit.</p>
</a>
</div>
</div>
<!-- /.col-sm-4 -->
</div>
<div class="page-header">
<h1>Panels</h1>
</div>
<div class="row">
<div class="col-sm-4">
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-primary">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
</div>
<!-- /.col-sm-4 -->
<div class="col-sm-4">
<div class="panel panel-success">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-info">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
</div>
<!-- /.col-sm-4 -->
<div class="col-sm-4">
<div class="panel panel-warning">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
<div class="panel panel-danger">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
</div>
<!-- /.col-sm-4 -->
</div>
</div>
</body>
</html>【讨论】：
滚动怎么样，如果数据太长，那么 pdf 应该像这样导出不是吗？，我已经尝试过并投票赞成，但在我的情况下是我的 div 中的可滚动数据，您能在此处添加可滚动的 true 吗？我已经尝试了很多。 @Jigar7521 据我在剑道 pdf 导出中看到的，存在一些限制。就像你的 div 被隐藏一样，它会给你一个空白的 pdf。剑道中建议有一个解决方法，这里是docs.telerik.com/kendo-ui/framework/drawing/…。因此，如果您有一个可滚动的元素解决方法是创建一个 div 样式="position: absolute;width: 800px;left: -10000px;top: 0;"并以任何您想以 pdf 格式导出的方式平移所有内容。或者使用带有可滚动->虚拟的剑道网格，它可以选择导出带有网格中所有数据的pdf。 @Mahib 像 nvd3 图表这样的 svg 元素呢？因为它不显示在 pdf 中。 @dkc007 我对 svg 元素一无所知。剑道有限制，请查看他们的官方限制指南。 @dkc007 您可以在 kendo 中查看以下链接以获取 svg .. 我不确定它是否有效，但您可以使用它.. docs.telerik.com/kendo-ui/framework/drawing/drawing-dom【参考方案3】：这对我有用 我正在使用来自 Angular2 应用程序的 html2pdf，所以我在控制器中引用了这个函数
var html2pdf = (function(html2canvas, jsPDF)
在 html2pdf.js 中声明。
所以我在我的角度控制器中的导入声明之后添加了这个声明：
declare function html2pdf(html2canvas, jsPDF): any;
然后，从我的角度控制器的一个方法中，我调用了这个函数：
generate_pdf()
this.someService.loadContent().subscribe(
pdfContent =>
html2pdf(pdfContent,
margin: 1,
filename: 'myfile.pdf',
image: type: 'jpeg', quality: 0.98 ,
html2canvas: dpi: 192, letterRendering: true ,
jsPDF: unit: 'in', format: 'A4', orientation: 'portrait'
);
);
希望对你有帮助
【讨论】：
你能告诉我你的angular2组件代码吗？ 代码在那里，你有没有链接到你的 github 或其他东西以便检查它 这是我用来生成pdf的component.ts代码gist.github.com/NikhilRadadiya/a5812171aac5497aa3134a3aaa1a8f4a
你需要这个东西的等价物 declare function html2pdf(html2canvas, jsPDF): any;【参考方案4】：
已在 service-now 平台中实现。无需使用其他库 - makepdf 拥有您所需要的一切！
我的 html 部分（包括 preloder gif）：
<div class="pdf-preview" ng-init="generatePDF(true)">
<object data="c.content" type="application/pdf" style="width:58vh;height:88vh;" ng-if="c.content" ></object>
<div ng-if="!c.content">
<img src="https://support.lenovo.com/esv4/images/loading.gif" >
</div>
</div>
这是客户端脚本（js部分）
$scope.generatePDF = function (preview)
docDefinition = //you rootine to generate pdf content
//...
if (preview)
pdfMake.createPdf(docDefinition).getDataUrl(function(dataURL)
c.content = dataURL;
);
所以在页面加载时，我会触发生成 pdf 内容的 init 函数，如果需要，预览（设置为 true）结果将分配给 c.content 变量。在 c.content 获得值之前，不会显示 html 端对象，因此将显示正在加载的 gif。
【讨论】：
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