add jspdf, could be useful in the future

templates/libs/jspdf_footer.html

@@ -0,0 +1,23 @@
+<script src="//html2canvas.hertzen.com/dist/html2canvas.min.js"></script>
+<script
+  src="//cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js"
+  integrity="sha512-qZvrmS2ekKPF2mSznTQsxqPgnpkI4DNTlrdUmTzrDgektczlKNRRhy5X5AAOnx5S09ydFYWWNSfcEqDTTHgtNA=="
+  crossorigin="anonymous"
+  referrerpolicy="no-referrer"
+></script>
+<script>
+  window.addEventListener("DOMContentLoaded", () => {
+    const { jsPDF } = window.jspdf;
+
+    const doc = new jsPDF();
+
+    doc.html(document.body, {
+      width: doc.internal.pageSize.getWidth() - 20,
+      windowWidth: 800,
+      margin: [15, 10, 10, 10],
+      callback: function (doc) {
+        doc.save(`${document.title}.pdf`);
+      },
+    });
+  });
+</script>