Variable QR Code Labels and Unique QR Printing

Unique, Not Shared

In a conventional QR campaign every product carries the same code and every scan lands on the same page. With variable QR each unit has its own identity — a scan resolves to that specific item. If you print 100,000 units, the system generates 100,000 distinct values.

Why QR Rather Than a Barcode

A barcode carries a number and needs a dedicated reader. A QR code carries far more data and is read by any phone. That difference decides the use case: barcodes for internal operations, QR for anything the end customer participates in.

Static or Dynamic

Static: the destination is embedded and can never change. No infrastructure dependency; it will still work in ten years.

Dynamic: the code passes through a redirect, so the destination can be updated later and scans counted. In exchange you depend on that service staying online — if it closes, every printed code stops working.

Authentication projects require the dynamic model, because the result must be read from a database in real time.

Print Requirements

• Minimum 15 mm edge length on label stock; 20 mm is the safe range
• A quiet zone of at least 4 modules on all four sides
• Error correction Q or H where a logo is embedded
• Matte finish — gloss lamination causes flash reflection
• Shorter destination URLs produce sparser, easier-to-read codes

Unpredictable Codes

For security applications we never use sequential values. Anyone who sees one code could derive the rest. Codes are generated independently and long enough that guessing another is not practical.