Guides
39 articles on guides.
Are QR Code Generators Safe? What to Check Before You Print
Reputable generators are safe — the real risks are expiring free codes, redirect domains you don't control, and data collection. The two-minute checklist.
What Is a Dynamic QR Code? How It Works, Explained Simply
A dynamic QR code points to a short redirect link instead of a fixed destination, so you can change where it leads and track every scan without reprinting. How it works, explained.
Custom Shape QR Codes: What Scans and What Breaks
Rounded modules, restyled eyes, frames, logos, even AI artwork — what you can safely customize, and which changes stop a code scanning.
QR Codes for Books: Where Authors and Publishers Put Them
Back cover, interior pages, bookmarks — and why a printed book needs a dynamic QR code, since the print can never be updated.
QR Codes for Inventory Tracking: A Setup That Actually Works
Label items with dynamic QR codes any phone can scan — no scanner hardware. Bulk-generate from a CSV and get a timestamped scan log per item.
Free QR Code Generator That Doesn't Expire: What Actually Lasts
Free static QR codes never expire — the link is encoded permanently. Free dynamic codes are the ones that stop working. Here is the difference, honestly.
2D barcode labels: DataMatrix, QR and what they carry
A 2D label holds GTIN, batch, expiry and serial in one square. Module size, quiet zones, scanner requirements and where they are becoming mandatory.
Barcodes for clothing: sizes, labels and print rules
Every size and colour needs its own GTIN. How many barcodes an apparel range needs, where to put them, and what size to print them.
Coupon barcodes: formats, printing and expiry rules
Coupon barcodes fail at the counter for three reasons. Which symbology to use, where to place it, and why expiry belongs in your till, not the code.
Gift card barcodes: what they carry and how to print them
A gift card barcode holds an identifier, not a balance. Which symbology to use, how to print on plastic, and why cards activate twice.
Can You Change a QR Code After Printing? Your Options
You can change a dynamic QR destination after printing. For a static code, check control of the encoded URL before choosing a redirect or replacement.
Dynamic QR Codes and Short Links for Campaign Control
Dynamic QR codes and short links use editable online destinations. Pair them by channel, preserve clear reporting and avoid unnecessary redirect chains.