How to Add a Logo to Your QR Code in CrabQR

1. Access Style Settings
2. Enter Logo URL
3. Adjust Logo Size
4. Set Logo Margin
5. Preview and Save

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Access Style Settings

Open the QR Code Style Designer by creating a new QR code or editing an existing one. In the style customization panel, scroll down to find the Logo section. This section allows you to overlay your company logo or brand image directly onto your QR code, creating a professional, branded appearance.

Enter Logo URL

In the Logo section, you'll see a Logo URL input field. Enter the complete URL of your logo image (e.g., "https://yourdomain.com/logo.png"). The logo must be hosted online and accessible via a public URL. Supported formats include PNG (recommended for transparent backgrounds), JPG, and SVG. CrabQR will fetch and display your logo in the QR code preview.

Adjust Logo Size

Below the logo URL field, use the Logo Size slider to control how large your logo appears in the QR code. The slider typically ranges from 50 to 150 pixels. Start with a moderate size (around 80-100 pixels) and adjust based on your preview. A logo that's too large can interfere with scanning, while one that's too small may not be visible enough to provide branding value.

Set Logo Margin

The Logo Margin slider controls the white space (or background color) around your logo. This margin helps separate the logo from the QR code pattern, improving both aesthetics and scannability. Adjust the margin between 0 and 20 pixels. A margin of 5-10 pixels typically works well - enough to create separation without making the logo area too large. CrabQR automatically hides QR code dots behind the logo for cleaner appearance.

Preview and Save

As you adjust logo settings, the preview updates in real-time showing your branded QR code. Before saving, test scan the QR code using your smartphone camera to ensure it still works reliably with the logo. If scanning fails, try reducing the logo size or increasing error correction to High (H). Once satisfied, save your style as a template so you can easily apply this branded look to all your QR codes.

Tips and Best Practices

• Use PNG images with transparent backgrounds for the most professional appearance - the QR code background will show through.
• Keep logo file sizes under 500KB and use optimized images for faster loading times in the designer.
• Always set error correction to High (H) when using logos - this ensures the QR code remains scannable even with the logo overlay.
• Square or circular logos work best in QR codes - very wide or tall logos may not fit well in the center space.

Common Pitfalls to Avoid

• Don't use logos that are too large (over 30% of the QR code area) - this can make the code unscannable.
• Avoid using logos with very fine details or small text - they become hard to see at small QR code sizes.
• Don't use white logos on QR codes with white backgrounds, or black logos on black backgrounds - ensure contrast.
• Make sure your logo URL is https (secure) and the image is publicly accessible - private images won't display.

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