How to Resize a QR Code Image

Updated:December 21, 2025

Proper scaling keeps QR codes scannable across print and digital formats. Accurate dimensions prevent blurring and ensure clear readability.

In this how-to guide, we will explore how the resizing of a QR code is performed using IronQR.

How to Resize a QR Code Image

Download the IronQR C# library to resize QR codes
Create a QrStyleOptions object
Set the Dimensions property for the required size
Generate the QR code
Save the resized QR code

Resizing QR Code

To create a custom-sized QR code for print or signage, set the Dimensions property to a specific value, then save the generated QR code with the QrStyleOptions applied.

In the example, we create a QR code from a URL, apply a custom size of 500 pixels using the Dimensions property of the QrStyleOptions class, and save the resized QR code as a PNG.

Please noteThe Dimensions property provides a direct 1:1 mapping; the integer you define becomes the exact pixel width and height of the final output.

:path=/static-assets/qr/content-code-examples/how-to/resize-qr-code.cs

using IronQr;
using IronSoftware.Drawing;

string url = "https://ironsoftware.com/csharp/qr/";

// Generate the QR code data
QrCode qr = QrWriter.Write(url);

// Save using default dimensions
AnyBitmap qrDefault = qr.Save();
qrDefault.SaveAs("qr-default-size.png");

// Define custom resizing
QrStyleOptions styleOptions = new QrStyleOptions
{
    Dimensions = 500
};

// Save using the style options
AnyBitmap qrResized = qr.Save(styleOptions);
qrResized.SaveAs("qr-resized.png");

$vbLabelText $csharpLabel

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Ahmad Sohail

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Ahmad is a full-stack developer with a strong foundation in C#, Python, and web technologies. He has a deep interest in building scalable software solutions and enjoys exploring how design and functionality meet in real-world applications.

Before joining the Iron Software team, Ahmad worked on automation projects ...

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