Change QR Logo Size

[twindberg]

Im using Spire.Office 8.7.0.

I want to generate a qr code with a logo inside.
The logo is appearing fine, but I can't change the size of the logo.
I tried playing around with ImageWidth and ImageHeight but it doesn't seem to have any effect.

Code: Select all

           
BarcodeSettings settings = new BarcodeSettings
            {
                Type = BarCodeType.QRCode,
                QRCodeECL = QRCodeECL.M,
                ShowText = false,
                X = 5f,
                Data = vCardContent.ToString(),
                ForeColor = Color.Gray,
                Unit = (int)GraphicsUnit.Pixel,
                ImageWidth = Convert.ToInt64(250),
                ImageHeight = Convert.ToInt64(250),
                Data2D = vCardContent.ToString(),
                QRCodeLogoImage = Image.FromFile(_environment.ContentRootPath + $"/assets/images/logo.jpg")
            };

            BarCodeGenerator generator = new BarCodeGenerator(settings);
            Image image = generator.GenerateImage();

            MemoryStream ms = new MemoryStream();
            image.Save(ms, ImageFormat.Png);
            ms.Position = 0;
            return new FileStreamResult(ms, "image/png");

[Triste.Dai]

Hi,

Thanks for your inquriy.
Kindly note that BarcodeSettings.ImageHeight and BarcodeSettings.ImageHeight are settings for the QR-code image size. Please use the following code to modify the added image size .

Code: Select all

Image image = Image.FromFile(@"test.png ");
Size size = new Size(8, 8);
Bitmap newImage = new Bitmap(image, size);
newImage.Save("result.png", ImageFormat.Png);
...
QRCodeLogoImage = Image.FromFile("result.png");

If there are any further questions or concerns, just feel free to contact us.

Best regards,
Triste
E-iceblue support team

[twindberg]

Hi Triste,

working fine. Thank you very much

[Triste.Dai]

Hi,

Thanks for your feedback.
I am delighted to hear that the code works for your issue. If you have any other questions, just feel free to contact us. We are here to assist you.

Have a nice day!

Best regards,
Triste
E-iceblue support team