Dynamic QR Code Block – QR Code Generator with Logo Support

FAQ

Can I add my logo to the QR code?

Yes! The Dynamic QR Code Block allows you to upload and display your company or brand logo in the center of your QR code. This feature helps create professional, branded QR codes that enhance recognition and trust.

For optimal scanning reliability:
* Use a simple logo with clear lines and high contrast
* Keep the logo relatively small (30-40px recommended)
* Ensure your logo has transparent background (PNG format works best)
* When adding a logo, the plugin automatically sets error correction to High (H) level

What content types can I encode in my QR codes?

Dynamic QR Code Block supports a wide range of content types:

• URL: Link to any webpage, product, or online resource
• Plain Text: Share messages, codes, or identification numbers
• Email: Create QR codes that open email clients with pre-filled address, subject, and body
• Phone: Generate QR codes that initiate calls when scanned
• SMS: Create codes that open messaging apps with pre-filled text
• WhatsApp: Direct users to WhatsApp with prepared messages
• vCard: Share complete contact information in a standard format
• WiFi: Help visitors connect to networks without typing passwords

Will customizing QR code colors affect scanning reliability?

Yes, color choices can impact scanning performance. For optimal results:

• Maintain high contrast between foreground and background colors
• Dark foreground colors (black, navy, dark purple) work best
• Light background colors (white, light yellow, light blue) provide good contrast
• Avoid using similar shades for both foreground and background
• Test your colored QR codes with multiple scanning apps and devices

The plugin includes a contrast checker that will warn you if your color combination might reduce scanning reliability.

What are the different error correction levels and which should I choose?

Error correction allows QR codes to remain scannable even when partially damaged or obscured:

• L (Low): 7% of data can be restored – Best for simple content in controlled environments
• M (Medium): 15% of data can be restored – Good general-purpose setting
• Q (Quartile): 25% of data can be restored – Recommended for most uses
• H (High): 30% of data can be restored – Best when adding logos or for outdoor use

When you add a logo to your QR code, the plugin automatically sets error correction to High (H) to ensure reliable scanning.

Is there a limit to how much data I can encode in a QR code?

Yes, QR codes have inherent capacity limitations:

• Alphanumeric content: up to 4,296 characters (depends on error correction level)
• Numeric-only content: up to 7,089 digits (depends on error correction level)

As you add more data, the QR code becomes more complex with smaller elements, which may reduce scanning reliability, especially on low-quality scanners or in poor lighting conditions.

Best practices:
* Keep URLs short (consider using URL shorteners for very long links)
* Include only essential information in contact details
* Test complex QR codes with multiple devices before publishing

Which output format should I choose for my QR code?

Dynamic QR Code Block offers three output formats, each with specific advantages:

• SVG: Best for responsive designs and print materials. Scales perfectly to any size without quality loss.
• PNG: Good for web use with support for transparent backgrounds. Works well across all platforms.
• JPG: Smallest file size, good for basic web use where transparency isn’t needed.

For most WordPress sites, SVG is recommended as it provides the best quality across all device sizes.

Is the plugin compatible with page builders and themes?

Yes! Dynamic QR Code Block works with:

• The standard WordPress block editor (Gutenberg)
• Popular page builders that support Gutenberg blocks
• All properly coded WordPress themes

The QR codes are responsive by default and will adapt to your theme’s styling.

Do I need a subscription or API key to use this plugin?

No! Dynamic QR Code Block generates all QR codes locally on your server without requiring any external services, API keys, or subscriptions. There are no usage limits or hidden costs – create as many QR codes as you need.