#QRCode

1 messages · Page 1 of 1 (latest)

humble pier
#

I am having a lot of difficulty implementing the QR code functionality using the QRCode library, is there any known solution to correctly generate and save the QR code to Base64 so that I can use it in the required place? - more precisely in jsPdf

regal yachtBOT
#

To generate a QR code and save it as a Base64 string for use in jsPDF, you can follow these steps:

  1. Generate the QR Code: Use a library like qrcodejs to generate the QR code. You can include the library in your project using a CDN.

  2. Convert QR Code to Base64: Once the QR code is generated, you can convert it to a Base64 string.

  3. Use in jsPDF: Finally, use the Base64 string in jsPDF to include the QR code in your PDF document.

Here's a basic example of how you can achieve this:

// Include the QRCode library// Function to generate QR code and convert to Base64
function generateQRCodeBase64(text) {
const qrCodeContainer = document.createElement('div');
const qrCode = new QRCode(qrCodeContainer, {
text: text,
width: 128,
height: 128
});

// Convert the QR code to a Base64 string
const canvas = qrCodeContainer.querySelector('canvas');
return canvas.toDataURL('image/png');
}

// Use the Base64 string in jsPDF
function createPDFWithQRCode() {
const doc = new jsPDF();
const qrCodeBase64 = generateQRCodeBase64('Your text here');
doc.addImage(qrCodeBase64, 'PNG', 10, 10, 50, 50);
doc.save('document.pdf');
}

Make sure to include the qrcodejs and jsPDF libraries in your HTML file. This example assumes you have a basic understanding of how to include and use external JavaScript libraries in your project.

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