QRLynx Blog
QR Code Guides, Tips & Best Practices

Wedding QR Code for Cash Gifts (2026 Guide)
Wedding QR code for cash gifts using PayPal, Venmo, or Cash App. Compare platforms, learn gift etiquette, and set up a dynamic QR for signs and invitations.

Wedding QR Code for Photos: Collect Guest Pictures Free
Create a free wedding QR code for photos. Guests scan and upload pictures without logging in. Covers Google Photos, dynamic QR, and placement tips.

Minimum QR Code Size for Print — 10:1 Rule (2026)
Minimum printable QR code size by scan distance and print method. The 10:1 rule, smallest reliable size (0.8"/20mm), 12 real-world test cases.

QR Codes for Flyers & Posters: Print Size, Placement, Design
QR codes on flyers and posters — exact print sizes (the 10:1 rule), placement zones, design tips, and campaign tracking. Avoid common scan-failure mistakes.

WiFi QR Code for Restaurants and Cafes (2026 Guide)
Create a free WiFi QR code for your restaurant or cafe. Covers guest network setup, placement tips, security, and design so customers connect instantly.

How to Use QR Codes at Your Wedding (2026 Guide)
QR codes for weddings: RSVPs, photo sharing, WiFi, and registry links. 7 use cases, design tips, and a complete wedding day timeline to guide your setup.

How to Create a QR Code Menu for Your Restaurant (2026)
Create a free QR code menu for your restaurant in minutes. Covers PDF menus, table placement, mobile design tips, and the best generators for restaurants.

How to Put a QR Code on Your Business Card (2026)
Add a QR code to your business card in minutes. Covers vCard setup, design rules, print specs, sizing, and networking strategies for professionals.

How to Create a Google Review QR Code in 60 Seconds
Google Review QR code created in under 2 minutes — customers scan and your review page opens instantly. Free step-by-step guide for any business.