HTML2Canvas unable convert div to image with large images - html2canvas

Question

I am using HTML2CANVAS to capture Div as Image and save to database.
Its working fine with images of 1-2 kb and text.
but unable to capture multiple and large images suppose 200-300 kb.
Please help help me out if anyone has face this issue and has solution.
Here is my Code:
<div id="target">
<page size="A4">
<div id="wrapper" >
<div id="header">
<div class="text">
<span id="rent">This Space for rent/price</span>
<h1 id="propAdd">THIS SPACE FOR PROPERTY ADDRESS</h1>
<h1 id="Data">THIS SPACE FOR DATA</h1>
</div>
</div>
<h1 id="ad">
This Space For advert heading</h1>
<div id="content">
<div class="main">
<div id="dvPreview2">
<img src="images/main-image.jpg" width="550" height="355" />
</div>
<h1 id="DES">This Space for Property Description or FEATURES</h1>
<ul>
<li id="DES1">4 Bedrooms, 3 Bathrooms</li>
<li id="DES2">Ensuite has double shower & double vanity</li>
<li id="DES3">Massive open plan living with cathedral ceilings</li>
<li id="DES4">Resort-style pool deck area</li>
<li id="DES5">Gourmet kitchen with butlers pantry</li>
<li id="DES6">Fully ducted air-con</li>
<li id="DES7">Triple lock-up garage with remote</li>
<li id="DES8">Outside pets considered on application</li>
</ul>
</div>
<div class="sidebar">
<div id="dvPreview3">
<img src="images/sidebar-image-01.png" width="159" height="100" />
</div>
<div id="dvPreview4">
<img src="images/sidebar-image-02.png" width="159" height="100" />
</div>
<div id="dvPreview5">
<img src="images/sidebar-image-03.png" width="159" height="100" />
</div>
<p id="dvPreview1" >
<img src="images/agent-logo.png" style="width:80px;" /></p>
<p style="margin-top:0 !important;">
Phone: <span id="phone">[phone]</span><br />
E-mail: <span id="mail">Ject41#cuvox.de</span><br />
<span id="web">www.abc.in</span>
</p>
</div>
<div class="clear"></div>
<div class="slid-img">
<div id="dvPreview6" >
<img src="images/image-01.jpg" width="159" height="100" />
</div>
<div id="dvPreview7" >
<img src="images/image-02.jpg" width="159" height="100" />
</div>
<div id="dvPreview8" >
<img src="images/main-image.jpg" width="159" height="100" />
</div>
<div id="dvPreview9" >
<img src="images/sidebar-image-01.png" width="159" height="100" style="float:right; margin:0" />
</div>
</div>
<div class="clear"></div>
</div>
<div class="affiliation-logo">
<ul>
<li><div id="dvPreview10" style="width:32px;"><img src="images/facebook-icon.png" width="32" /></div></li>
<li><div id="dvPreview11" style="width:32px;"><img src="images/twitter-icon.png" width="32" /></div></li>
<li><div id="dvPreview12" style="width:32px;"><img src="images/linkedin-icon.png" width="32" /></div></li>
<li><div id="dvPreview13" style="width:32px;"><img src="images/youtube-icon.png" width="32" /></div></li>
<li><div id="dvPreview14" style="width:32px;"><img src="images/google-plus-icon.png" width="32" /></div></li>
</ul>
</div>
<div class="clear"></div>
<div id="footer">
<div class="agent-section">
<%-- <div class="agent-name"></div>--%>
<span class="agent-name" style="float:left"> Disclaimer : </span>
<div id="DIS" style="max-width:550px; float:left; margin-left:10px; line-height:18px; font-size:14px;"></div>
</div>
<div class="clear"></div>
</div>
</div>
</page>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/0.4.1/html2canvas.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$('#add_button').click(function () {
html2canvas($('#target'), {
onrendered: function (canvas) {
var img = canvas.toDataURL()
img = img.replace('data:image/png;base64,', '');
//alert(img);
//window.open(img);
$.ajax({
type: 'POST',
url: 'Design1.aspx/UploadImage',
data: '{ "imageData" : "' + img + '" }',
contentType: 'application/json; charset=utf-8',
dataType: 'json',
success: function (msg) {
//alert('Image saved successfully !');
}
});
}
});
});
});
</script>

Answer 1

In file Html2Canvas.js on line 65
Change following line from
/* Highest positive signed 32-bit float value /
/maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1
to as Below
maxInt = Number.MAX_VALUE,

Answer 2

trick.
set your tag with and height is double of the output image size.