Blog

What size should a QR code be? Minimum sizes for cards, flyers and posters

2 November, 2026 • Short links and QR codes • 17 views

Risograph print of a business card, an A5 flyer and an A4 poster laid side by side, each with a QR code of a different size

QR code sizes for UK print, from 85 x 55 mm business cards to A4 and A3 posters, why short links scan smaller, the white border rule and which file to send.

QR codes on wedding invitations, what to link and how to make one

1 November, 2026 • Short links and QR codes • 30 views

A cream wedding invitation with a small printed QR code beside a phone and a sprig of dried flowers

What a wedding invitation QR code should open, how to make a dynamic one you can edit after printing, how to check the printer's proof and what to do for guests who don't scan.

How to make a QR code for a PDF, and where to host the file

31 October, 2026 • Short links and QR codes • 33 views

A printed leaflet with a QR code on a café counter next to a phone showing a PDF page

Where to host a PDF for a QR code, the Google Drive sharing steps on a computer, Android and iPhone, how to update the file without reprinting and how to fix common problems.

How to add links to your YouTube channel, and where viewers will see them

30 October, 2026 • Guides • 40 views

Add up to 14 links to your YouTube channel in YouTube Studio on a computer or phone, see where the first link appears, and why Shorts links aren't clickable.

How to share a Google Maps link to your business

29 October, 2026 • Guides • 37 views

A phone showing a map pin in front of an independent bookshop on a British high street

Copy your Google Maps business link on a phone or computer, choose between a listing and a pin, and use it in your bio, reminders and QR codes.

Link in bio for hairdressers and what to put on a UK salon page

29 October, 2026 • Link in bio • 43 views

Risograph print of salon scissors, comb, brush and mirror arranged in a column

Put your booking link first, then prices, hours, location, cancellation policy and contact. A salon page layout you can build on Digily Link's free plan.

How to scan a QR code on iPhone and Android, and how to spot a fake one

29 October, 2026 • Short links and QR codes • 29 views

A risograph illustration of a phone scanning a QR code sticker peeling off a car park pay machine

Scan QR codes with your iPhone or Android camera, fix codes that will not scan, and follow NCSC advice to spot fake QR codes in car parks and emails.

How to make a WiFi QR code for a café, holiday let or office

28 October, 2026 • Short links and QR codes • 33 views

A customer scanning a QR code table card in a café, beside a pot of tea

Make a WiFi QR code guests can scan to join your network, what the code contains, which phones read it and how to keep your main network private.

Do QR codes expire? Static, dynamic and the generators that lock you in

27 October, 2026 • Short links and QR codes • 45 views

A faded QR code poster in a rainy shop window with an hourglass on the sill

Why QR codes do not expire on their own, why some dynamic codes stop working, how to check a code in seconds and how dynamic QR codes work on Digily Link.