Note: While not technically identical, PPI and DPI values are often used interchangeably when preparing images for print or screen from digital files.

`; } // PDF Export function generatePDF() { const { jsPDF } = window.jspdf; const doc = new jsPDF(); const resultText = document.getElementById('resultsArea').innerText.trim(); if (!resultText || resultText.includes("click")) { alert("No results to export. Please calculate first."); return; } doc.setFontSize(16); doc.text("PPI to DPI Conversion Report", 10, 20); doc.setFontSize(12); const lines = resultText.split('\n'); let y = 30; lines.forEach(line => { doc.text(line, 10, y); y += 10; }); doc.save("PPI_to_DPI_Report.pdf"); } // Attach event listeners document.getElementById('convertBtn').addEventListener('click', convertUnits); document.getElementById('pdfBtn').addEventListener('click', generatePDF); });