Scan QR Code in C# | https://docs.conholdate.com/net/scanning-qr-code/

scanning-qr-code.cs

// Create an instance of Parser class
using (Parser parser = new Parser(Constants.SamplePdfWithBarcodes))
{
    // Check if the file supports barcodes extraction
    if (!parser.Features.Barcodes)
    {
        Console.WriteLine("The file doesn't support barcodes extraction.");
        return;
    }

    // Scan barcodes with type "QR" from your file.
    IEnumerable<PageBarcodeArea> qrcodes = parser.GetBarcodes().Where(i => i.CodeTypeName == "QR");

    // Iterate over barcodes
    foreach (PageBarcodeArea qrcode in qrcodes)
    {
        // Print the page index
        Console.WriteLine("Page: " + qrcode.Page.Index.ToString());
        // Print the qrcode value
        Console.WriteLine("Value: " + qrcode.Value);
    }
}

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