QR Code最佳实践
Practical guidelines for size, placement, printing, testing, and deployment across different environments — from business cards to billboards, screens to product packaging.
QR Code尺寸：每个距离的最小尺寸
Size formulas and lookup tables for scan distances from 10cm to 10m. Module size requirements for reliable scanning.
QR Code打印：纸张、墨水和分辨率
Print specifications: DPI, ink types, paper stock, lamination, and quality control for reliable QR code reproduction.
测试QR Codes：完整验证指南
Systematic testing protocol: device matrix, distance testing, lighting conditions, edge cases, and regression testing.
QR Code静区：最被忽视的要求
Why the 4-module quiet zone matters, common violations, and how to ensure your QR code has adequate margins.
曲面上的QR Codes
Printing QR codes on bottles, cans, tubes, and cylindrical packaging. Distortion compensation and module size adjustments.
电子邮件中的QR Codes：何时使用与如何使用
Embedding QR codes in email: when it makes sense, image rendering issues, alt text, and screen-to-screen scanning ergonomics.
QR Code无障碍：WCAG与包容性设计
Making QR codes accessible: alt text, colour contrast, alternative text links, screen reader support, and inclusive placement.
避免常见的QR Code错误
The 15 most common QR code mistakes: no quiet zone, low contrast, wrong EC level, expired URLs, and untested codes.
屏幕显示用QR Code：电视、显示器和投影仪
Displaying QR codes on screens: resolution requirements, Moire pattern avoidance, brightness settings, and viewing distance.
QR Code URL缩短：何时以及如何
Shortening URLs for smaller QR codes: services, custom domains, permanence concerns, and when to avoid shorteners.
QR Code维护：保持代码长期运行
Long-term QR code management: URL monitoring, domain renewal, redirect chain health, and replacement strategies.
QR Code材料选择：从纸张到金属
Choosing materials for QR code reproduction: paper, vinyl, metal etching, ceramic, and fabric. Durability per environment.
低光照和户外环境中的QR Codes
QR code scanning in challenging conditions: night-time, dimly lit venues, direct sunlight, rain, and reflective surfaces.
QR Code版本选择：平衡大小和数据
How to choose the optimal QR code version: data length analysis, EC level needs, physical size constraints, and version override.
QR Code部署清单
Pre-deployment verification checklist: data validation, size, EC level, print quality, placement, testing, and monitoring.