My_Tableau_Interactive_Workbook_Demo_v1.html

<html>

<head>
    <title>Export to PDF</title>
    
    <script type="text/javascript" 
        src="https://public.tableau.com/javascripts/api/tableau-2.js"></script>
    <script type="text/javascript">
        var viz;

        function initViz() {
            var containerDiv = document.getElementById("vizContainer"),
                url = "http://public.tableau.com/views/WorldIndicators/GDPpercapita",
                options = {
                    hideTabs: false
                };

            viz = new tableau.Viz(containerDiv, url, options); 
            // Create a viz object and embed it in the container div.
        }

        function exportToPDF() {
            viz.showExportPDFDialog();
        }
    </script>
</head>

<body onload="initViz();">
    <div id="vizContainer"></div>
    <button onclick="exportToPDF();">Export</button>
</body>

</html>