jQuery(document).ready(function($) { $('#generate-barcode').on('click', function() { var barcodeInput = $('#barcode-input').val(); if (barcodeInput.length === 12 && /^\d+$/.test(barcodeInput)) { var fullCode = barcodeInput; // For EAN-13, the 13th digit is a checksum // Calculate the EAN-13 checksum (basic example - can be improved) var oddSum = 0; var evenSum = 0; for (var i = 11; i >= 0; i -= 2) { oddSum += parseInt(barcodeInput[i]); } for (var i = 10; i >= 0; i -= 2) { evenSum += parseInt(barcodeInput[i]); } var checksum = (10 - ((oddSum + 3 * evenSum) % 10)) % 10; fullCode += checksum; $('#barcode-first-digit').text(fullCode.charAt(0)); // Display the first digit separately JsBarcode("#barcode", fullCode, { format: "EAN13", lineColor: "#000", width: 2, height: 50, displayValue: false // We are handling the first digit separately }); $('#download-pdf').show(); } else { alert('Please enter a valid 12-digit numeric code.'); $('#download-pdf').hide(); $('#barcode').empty(); $('#barcode-first-digit').text(''); } }); $('#download-pdf').on('click', function() { var barcodeSVG = $('#barcode')[0]; if (barcodeSVG) { var svgData = new XMLSerializer().serializeToString(barcodeSVG); var canvas = document.createElement('canvas'); var svgSize = barcodeSVG.getBoundingClientRect(); canvas.width = svgSize.width; canvas.height = svgSize.height; var ctx = canvas.getContext('2d'); var img = new Image(); img.onload = function() { ctx.drawImage(img, 0, 0); var imageData = canvas.toDataURL('image/png'); const pdf = new jspdf.jsPDF({ orientation: 'portrait', unit: 'px', format: [canvas.width + 20, canvas.height + 30] // Add some padding }); pdf.addImage(imageData, 'PNG', 10, 10, canvas.width, canvas.height); pdf.save('barcode.pdf'); }; img.src = 'data:image/svg+xml;base64,' + btoa(svgData); } else { alert('No barcode to download.'); } }); }); REVD UZOR NDUBUISI EDWIN • Vicilook
REVD UZOR NDUBUISI EDWIN
REVD UZOR NDUBUISI EDWIN
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Nnewi
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Vicilook Nigeria

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