Sincerely,

`; letterContentDiv.innerHTML = letterHtml; }; generateBtn.addEventListener("click", function() { generateLetter(); showTab(1); // Switch to Dashboard }); // --- PDF Download --- pdfBtn.addEventListener("click", function() { var jsPDF = window.jspdf.jsPDF; var recipientSlug = recipientNameInput.value.replace(/[^a-zA-Z0-9\s]/g, '').replace(/\s/g, '_') || 'Invitee'; var fileName = `${recipientSlug}_Invitation_Letter.pdf`; html2canvas(exportArea, { scale: 2, useCORS: true, backgroundColor: '#ffffff' }).then(function(canvas) { var imgData = canvas.toDataURL('image/png'); var doc = new jsPDF({ orientation: 'p', unit: 'pt', format: 'letter' }); var pdfWidth = doc.internal.pageSize.getWidth(); var pdfHeight = doc.internal.pageSize.getHeight(); var imgProps = doc.getImageProperties(imgData); var imgWidth = imgProps.width; var imgHeight = imgProps.height; var margin = 40; var usableWidth = pdfWidth - (2 * margin); var ratio = usableWidth / imgWidth; var scaledHeight = imgHeight * ratio; // Handle multi-page if content exceeds page height if (scaledHeight > pdfHeight - (2 * margin)) { var pageHeight = pdfHeight - (2 * margin); var heightLeft = scaledHeight; var position = 0; while (heightLeft > 0) { doc.addImage(imgData, 'PNG', margin, position + margin, usableWidth, scaledHeight); heightLeft -= pageHeight; position -= pageHeight; if (heightLeft > 0) { doc.addPage(); } } } else { // Single page doc.addImage(imgData, 'PNG', margin, margin, usableWidth, scaledHeight); } doc.save(fileName); }).catch(function(err) { console.error("ILG PDF Error:", err); // alert("An error occurred while generating the PDF."); // Per spec }); }); // --- Initial Load --- generateLetter(); // Generate initial view with sample data showTab(0); // Start on Config tab });