---
type: guide
title: "The A to Z of QR Codes"
description: "The complete QR code guide for print: how they work, static vs dynamic codes, sizing and testing rules, and where to use them on printed pieces."
resource: https://www.4over4.com/guide/the-a-to-z-of-qr-codes-the-complete-guide
tags: ["guide"]
timestamp: 2026-07-20T18:54:40.856Z
---

# The A to Z of QR Codes

The complete QR code guide for print: how they work, static vs dynamic codes, sizing and testing rules, and where to use them on printed pieces.

See [all guide concepts](index.md).

- Page type: guide
- URL: https://www.4over4.com/guide/the-a-to-z-of-qr-codes-the-complete-guide