Guides
QR Code Guides
Each guide here is written for a different moment. Two are reference material you come back to when something is about to be printed: sizing and best practices. The rest answer a question you probably have right now: how do I make one, why has mine stopped working, and which kind do I actually need.
They are deliberately not product tours. Where something is specific to EZQR, the guide says so. Where a limit belongs to the QR format itself and would apply whichever generator you used, it says that instead, because most of what goes wrong with a QR code is decided before any generator is involved. A code too small for its scan distance, too little contrast against its background, or a short link nobody kept alive will fail no matter who encoded it.
Where to start
You are making your first code
Start with the step-by-step guide. It covers choosing a type, filling the form, and the proof-scan that catches most mistakes before they reach a printer.
How to create a QR codeA code that used to work has stopped
Work through the troubleshooting guide in order. A failed scan is usually the short link behind the code, the print quality, or the size. The code itself is rarely the problem.
Fixing a QR code that is not workingYou are deciding between static and dynamic
This is the one decision that is genuinely hard to undo, because it is settled the moment something goes to print. The comparison covers what each kind costs you later.
Dynamic vs static QR codesSomething is about to go to print
Check the size guide for the minimum dimensions at your scan distance, then the best-practices guide for contrast, quiet zone, and placement.
QR code size guideEvery guide
How to Create a QR Code (Step-by-Step Guide)
Pick a type, generate it, test it, then print it: the whole sequence for a first code that actually scans.
Read guideGuideQR Code Not Working? How to Fix Common Issues
Why a code that used to work fails: dead short links, print damage, poor contrast, too small. In the order worth checking.
Read guideGuideDynamic vs Static QR Codes: What Is the Difference?
Which kind you need, what each one costs you later, and why the choice is hard to reverse once something is printed.
Read guideGuideQR Code Best Practices for Print and Digital
Contrast, quiet zone, error correction, placement, and the call to action that decides whether anyone scans at all.
Read guideGuideQR Code Size Guide: Minimum Sizes for Every Use Case
Minimum sizes by scan distance and medium, from a business card to a billboard, with the arithmetic behind each one.
Read guide