Where does QRCodeLogo live in the IronBarcode API?

QRCodeLogo is a class in the IronBarCode namespace, shipped in IronBarCode.dll. Build a QRCodeLogo and pass it to QRCodeWriter.CreateQrCodeWithLogo to embed an image in the center of a generated QR code.

How do you add a logo to a QR code in C#?

Construct a QRCodeLogo from your image with a width and height, then pass it to QRCodeWriter.CreateQrCodeWithLogo along with the value to encode. Set RoundedCornerRadius for softer corners, and keep the logo small so the covered modules can still be recovered.

How do you stop a logo from breaking a QR code in C#?

Size the QRCodeLogo conservatively with LogoWidth and LogoHeight so it covers little of the symbol, and rely on the high error correction CreateQrCodeWithLogo applies. Test a scan before shipping, since a logo that fills too much of the code defeats recovery.

Class QRCodeLogo

A class allowing for advanced control on the logo of QR type barcodes.

QRCodeLogo gives the developer access to set logo image, logo width, logo height, and rounded logo corner.

Logo image can be provide as IronSoftware.Drawing.AnyBitmap, Files, Array of System.Byte and System.IO.Stream.

Inheritance

System.Object

QRCodeLogo

Namespace: IronBarCode

Assembly: IronBarCode.dll

Syntax

public class QRCodeLogo : Object

An image embedded in the center of a QR code, with control over its size and corner rounding, is described by QRCodeLogo. It is passed to QRCodeWriter.CreateQrCodeWithLogo, so a brand mark is placed on the code at the moment it is generated. Build one from the logo image and the dimensions it should occupy, then hand it to the writer alongside the value being encoded.

The constructor is overloaded across the ways a developer might supply the artwork: an AnyBitmap, a byte[], a Stream, a file path string, or a Uri. Each form takes either a single size or an explicit width and height, plus an optional roundedCornerRadius. The same values are readable and settable afterward through the Logo, LogoWidth, LogoHeight, and RoundedCornerRadius properties, so a logo built one way can be adjusted before the code is written.

LogoWidth and LogoHeight size the mark within the symbol, and RoundedCornerRadius softens its corners for a more finished placement. The Logo property holds the AnyBitmap source itself, which lets a developer swap the artwork without rebuilding the object. Keep the mark modest relative to the overall code: a logo covers part of the pattern, so a small, centered image leaves enough of the symbol intact to scan.

Because the covered modules cannot be read directly, pair a logo with a high error-correction level. CreateQrCodeWithLogo builds in headroom for this, but a logo that fills too much of the code will still defeat recovery, so size it conservatively and test a scan before shipping. For QR codes without a logo, or for non-QR symbologies, use QRCodeWriter.CreateQrCode or BarcodeWriter.CreateBarcode instead.

using IronBarCode;
using IronSoftware.Drawing;

var logo = new QRCodeLogo(AnyBitmap.FromFile("logo.png"), 100, 100, 5);
QRCodeWriter.CreateQrCodeWithLogo("https://ironsoftware.com", logo).SaveAsPng("branded-qr.png");

The customize QR code style how-to embeds and sizes a logo, the custom QR code example shows it within a styled code, and the QR code generator tutorial builds a complete branded generator.