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问题:

My requirement is, on click of a button, a pdf file should be displayed on dialog modal. Please Help!

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
  <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
  <h2>View PDF</h2>
  <!-- Trigger the modal with a button -->
  <button type="button" href="A - Cover Page.pdf" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">A - Cover Page</button>
  <!-- Modal -->
  <div class="modal fade" id="myModal" role="dialog">
    <div class="modal-dialog">
          <!-- Modal content-->
      <div class="modal-content">
        <div class="modal-header">
          <button type="button" class="close" data-dismiss="modal">&times;</button>
    </div>        
        <div class="modal-body">
          <p>Some text in the modal.</p>
        </div>
      </div>
    </div>
  </div>
 </div>
</body>
</html>

回答1:

Sorry to disappoint you but one cannot just show the pdf inside a modal by default. It is not an intended behavior. Even using <iframe>, you cannot render the pdf inside the bootstrap modal. Also most of the hacks provided online does not support cross-browser. The more ideal way is to use plugins for the same and I will give you the links for few using which you can achieve what you want.

1) Checkout PDFObject JS,

<script src="https://github.com/pipwerks/PDFObject/blob/master/pdfobject.min.js"></script>

PDFObject embeds PDF files into HTML documents. Link.

2) Easy Modal Plugin for Bootstrap. Demo Snippet and Website

3) Using jQuery Dialog Modal Popup Window. Demo.

Hope it helped.

回答2:

<div class="modal fade" id="modal-agreement">
  <div class="modal-dialog modal-lg" role="document">
    <div class="modal-content">
      <div class="modal-body">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
        <object type="application/pdf" data="path/to/pdf" width="100%" height="500" style="height: 85vh;">No Support</object>
      </div>
    </div><!-- /.modal-content -->
  </div><!-- /.modal-dialog -->
</div><!-- /.modal -->

回答3:

You can also embed the pdf inside the modal. Like this:

<embed src="sample.pdf" frameborder="0" width="100%" height="400px">

That worked for me

回答4:

You can as well try this

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>DisplayPDF</title>
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
    <div class="container">

        <!-- Trigger the modal with a button -->
        <button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button>
        <!-- Modal -->
        <div id="myModal" class="modal fade" role="dialog">
            <div class="modal-dialog modal-lg">

                <!-- Modal content-->
                <div class="modal-content">
                    <div class="modal-header">
                        <button type="button" class="close" data-dismiss="modal">&times;</button>
                        <h4 class="modal-title">Modal Header</h4>
                    </div>
                    <div class="modal-body">

                        <embed src="~file:///C:/Users/hp/Downloads/sb_finance.pdf" frameborder="0" width="100%" height="400px">

                        <div class="modal-footer">
                            <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
                        </div>
                    </div>

                </div>
            </div>
        </div>
    </div>

</body>
</html>