QR code guides that go past the basics
Print sizes in millimetres, error correction levels, GDPR-safe measurement and the failure modes nobody warns you about. Written by the person building Qreator.
RSS feedBulk QR code generation: from CSV to print-ready files
A practical workflow for batch QR generation: how to structure the CSV, name the exported files so prepress can find them, and decide between static and dynamic rows.
Read the guideQR codes on product packaging: size, material and placement
Packaging is the hardest surface for a QR code: it curves, it reflects, it gets printed at 2 cm. Here is what survives the shelf.
· 9 min read
Event ticket QR codes: unique codes and fast door scanning
One code per ticket, a validation step that cannot be replayed, and a print size that scans in one second at the door. The rest is logistics.
· 8 min read
QR code API: creating and updating dynamic codes programmatically
When codes are generated by your own system — one per order, per asset, per tenant — the generator has to be an API. Here is how that integration is shaped.
· 8 min read
Hidden QR code in an image: how to do it without breaking the scan
Hiding a QR code inside artwork is possible, but only some parts of the pattern are decorative. Here is exactly what you can cover and what you must leave alone.
· 7 min read
Low contrast QR codes: how far you can push colour before scans fail
Contrast is the single biggest predictor of whether a QR code scans. Here are the thresholds, the colour pairs that fail, and how to check yours before print.
· 6 min read
Do QR codes expire? How long a QR code really lasts
A static QR code lasts forever because the data is inside the image. A dynamic QR code lasts as long as the service behind the short link stays online.
· 6 min read
How to fix a blurry QR code, step by step
Four checks fix almost every blurry QR code: find where the blur came from, re-export at the right DPI, verify size and contrast, then re-test the print.
· 8 min read
Invisible QR code: hidden codes that still scan
Invisible QR codes hide the pattern inside artwork, use transparent inks, or embed data in ways the eye cannot see. Some work well; others are risky for production.
· 6 min read
How to print QR codes: size, format and best practices
Printing a QR code is not just about dropping a PNG into a layout. Format, size, contrast and material all decide whether the code scans reliably.
· 8 min read
vCard QR codes that actually save the contact
A vCard QR code encodes the entire contact card as text, so field choices and formatting decide whether it saves cleanly or fails at business-card size.
· 7 min read
QR code error correction and minimum print size
How much damage a QR code can survive is a number you choose at generation time, and it directly decides the smallest size you can safely print it.
· 9 min read
Why QR codes stop working (and how to avoid it)
Most "broken" QR codes are fine — the destination behind them, or the print job around them, is what actually failed.
· 8 min read
QR code design: contrast, quiet zone and logos
The design rules that decide whether a QR code scans on the first try or not at all, from contrast ratios to logo placement.
· 7 min read
QR codes for restaurants: from menu to reviews
A practical setup for restaurant QR codes that covers the menu, guest WiFi and post-meal reviews without reprinting every season.
· 7 min read
Static vs dynamic QR codes: the definitive guide
The difference isn't a marketing tier, it's a difference in what is physically encoded in the pixels — and it decides whether you can ever change the destination.
· 8 min read
How to track QR scans without breaking the GDPR
A practical walkthrough of what a QR scan request exposes and how to measure it without becoming a data protection problem.
· 7 min read
QR code or short link? When to use which
A QR code is a transport for a string and a short link is a redirect service — knowing the difference tells you which one belongs on which channel.
· 7 min read