在 Angularjs 中使用 pdfMake 从 HTML 生成 PDF

Question

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 但不能让它工作）。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：

Unrecognized document structure: {"_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，或其他将 HTML 从 Angular 转换为 PDF 的方法，请提供帮助。

非常感谢任何帮助！

Answer 1

好的，我明白了。

您将需要 html2canvas and pdfmake。您不需要在您的 app.js 中进行任何注入，只需在您的脚本标签中包含
在要为其创建 PDF 的 div 上，添加如下 ID 名称：
```
 <div id="exportthis">
```
在您的 Angular 控制器中，在调用 html2canvas:
使用 toDataURL()
然后在你的pdfmake的docDefinition中将图片分配给内容。

控制器中完成的代码如下所示：

       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帮助。编码愉快！

Answer 2

我知道它与此 post 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 kendo，这是一个简单的解决方案。它还保留了 css（大多数情况）。

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" alt="A generic square placeholder image with a white border around it, making it resemble a photograph taken with an old instant camera">
      <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>

Answer 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 angular-controller 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 angular 控制器的一个方法中调用这个函数：

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' }
        });
      }
    );
  }

希望对您有所帮助

Answer 4

已在 service-now 平台中实现。无需使用其他库 - makepdf 拥有您需要的一切！

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" width="50" height="50">
    </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;
        });
    }
}

因此，在页面加载时，我启动生成 pdf 内容的初始化函数，如果需要预览（设置为 true），结果将分配给 c.content 变量。在 html 侧对象将不会显示，直到 c.content 获得一个值，这样才会显示正在加载的 gif。

Answer 5

我是这样用的-也许对某人有用

     import pdfMake from 'pdfmake/build/pdfmake';
     import htmlToPdfmake from 'html-to-pdfmake';
        
          saveReport() {
          //Learning the html code of the table
            let pdfTable = document.querySelector('#tableDataVM').innerHTML;
            var html = htmlToPdfmake(pdfTable);
            pdfMake.createPdf({
              info: {
                title: "Disposal Report",
                author:'mikka',
                subject:'Theme',
                    keywords:'Report'
              },
              footer: function (currentPage, pageCount) {
                return {
                  margin: 10,
                  columns: [
                    {
                      fontSize: 9,
                      text: [
                        {
                          text: 'Page ' + currentPage.toString() + ' of ' + pageCount,
                        }
                      ],
                      alignment: 'center'
                    }
                  ]
                };
              },
              content: [
                {
                  text: "Disposal report for the period " + this.lastPeriod + " by average\n\n",
                  style: 'header',
                  alignment: 'center',
                  fontSize: 14
                },
                {
                  text:
                    "Param1: " + this.dataTableReport.host + " (" + this.dataTableReport.hostdescription + ")\n" +
                    "Param2: " + this.dataTableReport.claster + " (" + this.dataTableReport.clasterdescription + ")\n" +
                    "Param3: " + this.dataTableReport.pull + " (" + this.dataTableReport.pulldescription + ")\n",
                  fontSize: 10,
                  margin: [0, 0, 0, 20],
                  alignment: 'left'
                },
                html
              ],
              pageOrientation: 'landscape'//'portrait'
            }).open();
          }

在 Angularjs 中使用 pdfMake 从 HTML 生成 PDF

Generate PDF from HTML using pdfMake in Angularjs

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