Guides
A well-prepared QR code.
A successful share.
Useful guidance, from the first link to the final print.
Understand QR codes
How QR codes work, how long they last and how to choose a generator.
- Understand
Static or dynamic QR codes: what's the difference?
Understand direct content, intermediary links and what can change after printing.
Read the guide - Understand
Can a QR code expire?
Distinguish a readable QR code from a domain, page or service that is no longer available.
Read the guide - Prepare
Free QR generators: what should you check before printing?
Check the encoded destination, exported formats, watermark and service dependencies. A practical method, without ranking providers.
Read the guide - Understand
Why does my QR code become denser?
Compare four fictional QR codes with their UTF-8 byte counts, modules and calculated dimensions. Understand content limits and choices before printing.
Read the guide - Understand
Keep control of your company’s QR codes
Inventory QR destinations, files and owners. Prepare a supplier change without losing addresses already in print.
Read the guide
Create and personalise
A logo, the right colours and a design that stays readable.
- Personalise
Add a logo while keeping your QR code readable
Prepare a small logo, choose contrasting colours and understand the limits of verification.
Read the guide - Personalise
QR code colours and background: keep it readable
Choose dark modules, a light background and a clear quiet zone. Compare exports before placing a coloured QR code on your design.
Read the guide
Read and troubleshoot
Read an image, investigate a problem and check the destination.
- Troubleshoot
Wi-Fi QR code not working: what should you check?
Separate a scanning issue from a network, password or compatibility problem.
Read the guide - Check
QR code safety: check where a code leads
Examine a QR code's content and domain before opening it. Examples of misleading addresses and the limits of Qurl's local reader.
Read the guide - Fix
Can you change a QR code after printing?
A replaced PDF, moved link or typo in contact details: identify what the QR code contains and what you control before updating your materials.
Read the guide - Read
Read a QR code from an image on your phone
Read a QR code in a photo or screenshot on the same phone. Prepare the image, use the reader and check the result without a second device.
Read the guide - Read
Read a QR code on a computer without a phone
Decode a QR code from a file or screenshot on your computer. Inspect its content, check the domain and process document codes separately.
Read the guide - Troubleshoot
Unreadable QR code: find the cause and fix it
Separate a reading failure from an inaccessible link. Compare the file, layout and print to fix sharpness, contrast or size.
Read the guide - Troubleshoot
My QR code opens the wrong page: what should I check?
Compare the QR content, final address and access permissions. Find a wrong link, an outdated redirect or a file mix-up.
Read the guide
Prepare for printing
Formats, dimensions and layouts for your materials.
- Print
Print a QR code at the right size
Choose PNG, SVG or PDF, preserve the quiet zone and prepare a test at actual size.
Read the guide - Prepare
PNG, SVG or PDF: which QR file should you choose?
Compare PNG, SVG and PDF for your materials. Download three files of the same QR code and understand resizing limits.
Read the guide - Print
Place a QR code on a business card or flyer
Reserve space for the QR code, its quiet zone, a caption and a readable link. Prepare a clean layout for your printer.
Read the guide - Print
QR codes in windows: manage reflections and glossy materials
Plan a QR test behind glass or on glossy material. Compare placement, light and finish separately from the digital file.
Read the guide - Print
Print a sheet of QR code labels
Place QR codes in your label-sheet template. Check dimensions, repeated content, alignment and printing at 100% before loading the labels.
Read the guide - Print
Check a series of QR codes before printing
Prepare print approval that checks every destination, the final file and the material. Keep a clear record of approved versions.
Read the guide - Accessibility
Provide an alternative to scanning a QR code
Add a readable link, a clear action and a route without a smartphone. On screen, make the destination directly accessible through a real link.
Read the guide
Share and measure
Contacts, documents, forms and campaign links.
- Share
Import a contact from a QR code
Create a vCard, check its fields and verify the result in your contacts app.
Read the guide - Share
QR codes for forms: share the response link
Distinguish response, editing and results links. Check the authorised audience, prefilled values and closing date before printing your form's QR code.
Read the guide - Understand
Measuring QR codes: scans, opens or visits?
Understand what UTM parameters can tell you about your destination, and why an attributed visit does not count every scan.
Read the guide - Share
Update a menu without changing its QR code
Keep a stable address for your restaurant menu. Update the page or its PDF, then check the QR codes already on your tables.
Read the guide - Share
Share a PDF by QR code with an accessible link
Choose a viewing link, check permissions and test without your account. A QR code does not automatically make a private PDF public.
Read the guide - Share
WhatsApp QR code: check the number and prefilled message
Prepare a WhatsApp QR code with the right international number and a short message. Check the recipient and text before sharing your material.
Read the guide - Measure
Prepare UTM parameters for a QR code
Define source, medium and campaign before creating your QR code. Keep naming consistent and check parameters through to the destination page.
Read the guide - Organise
Prepare a CSV file for a batch of QR codes
Organise identifiers, destinations and filenames before creating a QR series. Check duplicates, characters and the mapping of each row.
Read the guide - Share
Event QR code: check dates and time zones
Share an event page and check dates, times, time zone and calendar access. Avoid ambiguity for remote participants.
Read the guide
Examples to try.
Fictional QR codes to download as PNG, SVG and PDF.