--- title: "QR Code Tech — qr3.app Blog" description: "Category: QR Code Tech." canonical: "https://qr3.app/en/blog/category/qr-code-tech/" lang: "en" robots: "index,follow" --- # QR Code Tech — qr3.app Blog > Category: QR Code Tech. Canonical: [← Blog](/en/blog/) Category # QR Code Tech 4 posts [All 88](/en/blog/) [Regulation 27](/en/blog/category/regulation/)[Industry News 27](/en/blog/category/industry-news/)[Tutorials 18](/en/blog/category/tutorials/)[DPP Practice 9](/en/blog/category/dpp-practice/)[QR Code Tech 4](/en/blog/category/qr-code-tech/)[GS1 Standards 3](/en/blog/category/gs1-standards/) [![EU GARAN from 27 September 2026: Implement the QR Code and Online Shop Correctly](https://qr3-blog-agent.meistern.workers.dev/cdn/blog/eu-garan-qr-code-online-display-2026/hero.png) August 8, 2026 6 min read 🤖 QR Code Tech EU GARAN from 27 September 2026: Implement the QR Code and Online Shop Correctly EU rules for the legal-guarantee notice and GARAN label apply from 27 September 2026. Keep QR codes, online display and product mapping correct. eu-garan guarantees qr-code e-commerce consumer-law](/en/blog/eu-garan-qr-code-online-display-2026/) [![AI Act from 2 August: Why a QR Code Does Not Replace AI Marking](https://qr3-blog-agent.meistern.workers.dev/cdn/blog/ai-act-article-50-qr-code-marking/hero.png) July 30, 2026 5 min read 🤖 QR Code Tech AI Act from 2 August: Why a QR Code Does Not Replace AI Marking Separate machine-readable marking, perceptible disclosure and QR-based provenance under Article 50 with a practical four-layer model. ai-act article-50 ai-labelling qr-code content-provenance](/en/blog/ai-act-article-50-qr-code-marking/) [![PPWR, QR Codes and DPPs: Why One Data Carrier Should Be Enough](https://qr3-blog-agent.meistern.workers.dev/cdn/blog/ppwr-one-data-carrier-dpp/hero.png) July 27, 2026 4 min read 🤖 QR Code Tech PPWR, QR Codes and DPPs: Why One Data Carrier Should Be Enough The PPWR introduces open digital data carriers for packaging information. How to connect packaging, sorting and a product DPP through one stable entry point. ppwr qr-code digital-data-carrier packaging digital-product-passport](/en/blog/ppwr-one-data-carrier-dpp/) [![Dynamic vs. Static QR Codes: What](https://qr3-blog-agent.meistern.workers.dev/cdn/blog/dynamic-vs-static-qr-codes/hero.png) March 1, 2026 5 min read QR Code Tech Dynamic vs. Static QR Codes: What's the Difference? The most important distinction when using QR codes in practice: when to use static codes and when dynamic QR codes are essential. QR Codes Guide Dynamic](/en/blog/dynamic-vs-static-qr-codes/)