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I am currently working on a school management software that usually requires exporting of html contents that contains data tables and div tag.
I have tried all possible means to write a code that will be able to export my html data in a good way, with css preferably. After checking some question and answers here, I tried using spdf, but no luck.
It keeps destroying my table alignment, then I read about html2canvas but to implement it with jspdf was my problem, i would like to capture the content if a div tag with html2canvas then send the canvas to jspdf to export the canvas as pdf.
Here is my code below:
<script src="assets/js/pdfconvert/jspdf.js"></script>
<script src="assets/js/pdfconvert/jspdf.plugin.from_html.js"></script>
<script src="assets/js/pdfconvert/jspdf.plugin.split_text_to_size.js"></script>
<script src="assets/js/pdfconvert/jspdf.plugin.standard_fonts_metrics.js"> </script>
<script src="assets/js/pdfconvert/jspdf.plugin.addhtml.js"></script>
<script src="assets/js/pdfconvert/filesaver.js"></script>
<script src="assets/js/pdfconvert/jspdf.plugin.cell.js"></script>
<script src="assets/js/pdfconvert/html2canvas.js"></script>
<script src="assets/js/pdfconvert/jspdf.plugin.addimage.js"></script>
here is the js code
var pdf = new jsPDF('p', 'pt', 'letter');
pdf.addHTML($('#ElementYouWantToConvertToPdf')[0], function () {
pdf.save('Test.pdf');
});
408
I have made a jsfiddle for you.
<canvas id="canvas" width="480" height="320"></canvas>
<button id="download">Download Pdf</button>
'
html2canvas($("#canvas"), {
onrendered: function(canvas) {
var imgData = canvas.toDataURL(
'image/png');
var doc = new jsPDF('p', 'mm');
doc.addImage(imgData, 'PNG', 10, 10);
doc.save('sample-file.pdf');
}
});
jsfiddle: http://jsfiddle.net/rpaul/p4s5k59s/5/
Tested in Chrome38, IE11 and Firefox 33. Seems to have issues with Safari. However, Andrew got it working in Safari 8 on Mac OSx by switching to JPEG from PNG. For details, see his comment below.
89
This one shows how to print only selected element on the page with dpi/resolution adjustments
HTML:
<html>
<body>
<header>This is the header</header>
<div id="content">
This is the element you only want to capture
</div>
<button id="print">Download Pdf</button>
<footer>This is the footer</footer>
</body>
</html>
CSS:
body {
background: beige;
}
header {
background: red;
}
footer {
background: blue;
}
#content {
background: yellow;
width: 70%;
height: 100px;
margin: 50px auto;
border: 1px solid orange;
padding: 20px;
}
JS:
$('#print').click(function() {
var w = document.getElementById("content").offsetWidth;
var h = document.getElementById("content").offsetHeight;
html2canvas(document.getElementById("content"), {
dpi: 300, // Set to 300 DPI
scale: 3, // Adjusts your resolution
onrendered: function(canvas) {
var img = canvas.toDataURL("image/jpeg", 1);
var doc = new jsPDF('L', 'px', [w, h]);
doc.addImage(img, 'JPEG', 0, 0, w, h);
doc.save('sample-file.pdf');
}
});
});
jsfiddle: https://jsfiddle.net/marksalvania/dum8bfco/
40
Changing this line:
var doc = new jsPDF('L', 'px', [w, h]);
var doc = new jsPDF('L', 'pt', [w, h]);
To fix the dimensions.
1
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