Guides
QR codes explained plainly — what they are, how they work, and the decisions that matter when you print one.
What Is a QR Code?
How the black-and-white grid actually stores data, and why phones can read it instantly.
Static vs. Dynamic QR Codes
The difference that decides whether you can fix a mistake after printing — or have to reprint everything.
How QR Code Scanning Works
Why some codes scan instantly and others fail — error correction, contrast, and size explained.