Guides

Plain answers to the questions people ask before, and after, printing a QR code. Written from running a QR service, not from reading other guides.

1. Do QR codes expire?

   Static QR codes never expire; dynamic ones stop when the vendor stops the redirect. What Canva, Adobe Express and Bitly codes do, and how to check yours.

2. Dynamic vs static QR codes: the difference, and which one to print

   Static QR codes encode the address; dynamic ones encode a redirect you can edit after printing. When each is worth it, the catch, and how to tell them apart.

3. Minimum QR code size for print: the rule, the math, and when 2 cm is not enough

   About 2 × 2 cm for a short link scanned from 20 cm; longer URLs need more. The distance rule, the module math and a size table for menus, packaging and posters.

4. QR code with a logo: how to add one that still scans after printing

   How to add a logo to a QR code that still scans: error correction H, logo under 20% of the area, corners clear, print from SVG. Free generator included.

5. Why is my QR code not working? Every cause, in the order to check them

   A QR code that will not scan is one of 12 problems: no quiet zone, too small, low contrast, a logo at the wrong level, a dead link, or an expired dynamic code.

Free QR code generator · Dynamic codes waitlist