How a I Create a qrcode only with a fixed size

[PEQSPC]

How to create a qrcode only with a fixed size of 82x82 ,i think is in QRCodeGenerator

// Define the text for the QR code
                string qrText = $"{Part_Number};{resultado};{material}";
                using (QRCodeGenerator qrGenerator = new QRCodeGenerator())
                {
                    QRCodeData qrCodeData = qrGenerator.CreateQrCode(qrText, QRCodeGenerator.ECCLevel.Q);
                    using (SvgQRCode qrCode = new SvgQRCode(qrCodeData))
                    {
                        string qrCodeAsSvg = qrCode.GetGraphic(2);
                        string fileName = $"{Part_Number}_QTYUNIT.svg";
                        string filePath = Path.Combine(folderPath, fileName);
                        File.WriteAllText(filePath, qrCodeAsSvg);



                        //read svg document from file system
                        var svgDocument = SvgDocument.Open(filePath);
                        
                        // Set the viewBox to keep the QR code content and adjust the viewport size
                        if (svgDocument.Height == 98 && svgDocument.Height == 98) {
                            svgDocument.ViewBox = new SvgViewBox(8, 8, 82, 82);
                            svgDocument.Width = new SvgUnit(SvgUnitType.Pixel, 82);
                            svgDocument.Height = new SvgUnit(SvgUnitType.Pixel, 82);

                            var bitmap = svgDocument.Draw();
                            bitmap.MakeTransparent(Color.Transparent);
                            bitmap.Save(filePath.Replace(".svg", ".png"), ImageFormat.Png);

                        }
                        else if(svgDocument.Height == 74 && svgDocument.Height == 74)
                        {
                            svgDocument.ViewBox = new SvgViewBox(0, 0, 82, 82);
                            //svgDocument.Width = new SvgUnit(SvgUnitType.Pixel, 82);
                            //svgDocument.Height = new SvgUnit(SvgUnitType.Pixel, 82);
                            var bitmap = svgDocument.Draw();
                            // Create a new bitmap with a transparent background
                            bitmap.MakeTransparent(Color.Transparent);
                            bitmap.Save(filePath.Replace(".svg", ".png"), ImageFormat.Png);
                        }
                        else
                        {
                            svgDocument.ViewBox = new SvgViewBox(0, 0, 82, 82);
                            svgDocument.Width = new SvgUnit(SvgUnitType.Pixel, 82);
                            svgDocument.Height = new SvgUnit(SvgUnitType.Pixel, 82);
                            var bitmap = svgDocument.Draw();

                            bitmap.MakeTransparent(Color.Transparent);
                            bitmap.Save(filePath.Replace(".svg", ".png"), ImageFormat.Png);
                        }

                        File.Delete(filePath);


                    }
                }