Exporting Multiple Charts as PDF using HTML2Canvas & JSPDF - CanvasJS JavaScript Charts

Exporting Multiple Charts as PDF using HTML2Canvas & JSPDF - CanvasJS JavaScript Charts

by canvasjs

HTML

<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<script src="https://html2canvas.hertzen.com/dist/html2canvas.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.0.272/jspdf.min.js"></script>
<button id="exportButton" type="button">Export as PDF</button>
<div id="chartsContainer">
  <div id="chartContainer1" style="height: 300px; width: 100%;"></div>
  <div id="chartContainer2" style="height: 300px; width: 100%;"></div>
</div>

JavaScript

var chart1 = new CanvasJS.Chart("chartContainer1", {
	title: {
  	text: "Column Chart"
  },
  data: [
    {
      type: "column",
      dataPoints: [
        { x: 10, y: 71 },
        { x: 20, y: 55 },
        { x: 30, y: 50 },
        { x: 40, y: 65 },
        { x: 50, y: 95 },
        { x: 60, y: 68 },
        { x: 70, y: 28 },
        { x: 80, y: 34 },
        { x: 90, y: 14 }
      ]
    }					
  ]
});

chart1.render();

var chart2 = new CanvasJS.Chart("chartContainer2", {
	title: {
  	text: "Spline Chart"
  },
  data: [
    {
      type: "spline",
      dataPoints: [
        { x: 10, y: 71 },
        { x: 20, y: 55 },
        { x: 30, y: 50 },
        { x: 40, y: 65 },
        { x: 50, y: 95 },
        { x: 60, y: 68 },
        { x: 70, y: 28 },
        { x: 80, y: 34 },
        { x: 90, y: 14 }
      ]
    }					
  ]
});

chart2.render();

$("#exportButton").click(function(){
  html2canvas(document.querySelector("#chartsContainer")).then(canvas => {  
    var dataURL = canvas.toDataURL();
    var pdf = new jsPDF();
    pdf.addImage(dataURL, 'JPEG', 20, 20, 170, 120); //addImage(image, format, x-coordinate, y-coordinate, width, height)
    pdf.save("CanvasJS Charts.pdf");
  });
});