How to create pdf of canvas charts and graphs inside a div on same page?

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JScript.NET

MVC5

on button click for print not able to load charts on preview page

What I have tried:

var canvas = $("#divPrint .skill-chart").get(0);
var dataURL = canvas.toDataURL();
function PrintDiv() {
var pdf = new jsPDF();
pdf.addImage(dataURL, 'JPEG', 0, 0);
pdf.save("download.pdf");}