Modifying report.html to include slide name

You would have to modify report.html after being published to Web. Insert this script right before </body> at the bottom of report.html document. 

  <script>
    document.addEventListener("DOMContentLoaded", function () {

        function loadScript(src, callback) {
            var script = document.createElement("script");
            script.src = src;
            script.onload = callback;
            document.head.appendChild(script);
        }
    
        loadScript("https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js", function () {
            loadScript("https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.4.1/html2canvas.min.js", function () {
                generatePDF();
            });
        });
    
        function generatePDF() {
            const { jsPDF } = window.jspdf;
            var doc = new jsPDF({
                orientation: "p",
                unit: "mm",
                format: "a4"
            });
    
            html2canvas(document.body, { scale: 1 }).then(canvas => {
                var imgData = canvas.toDataURL("image/png");
    
                var imgWidth = 210; 
                var pageHeight = 297; 
                var imgHeight = (canvas.height * imgWidth) / canvas.width; 
    
                doc.addImage(imgData, "PNG", 0, 0, imgWidth, imgHeight);
                doc.save("Results.pdf");
    
                // Close the tab after saving the PDF, with a slight delay to ensure the save dialog appears first
                setTimeout(function () {
                    window.close();
                }, 100); 
            });
        }
    });
    </script>  

Result:

You can play with different formats according to jsPDF documentation and update the code accordingly.