Choose a guide
Each guide covers a real use case, including how to test your QR code and which limitations matter before you print or share it.
PDF to QR code
A PDF QR code points people to a document when they scan it. QR Studio offers two methods: host a small file temporarily, or create a permanent QR pattern for a public PDF link you control.
Read the guide →Wi-Fi QR code
A Wi-Fi QR code lets a compatible phone join a wireless network without manually typing the network name and password. It is useful for guest rooms, event check-in desks and home networks.
Read the guide →QR code with logo
A QR code with a logo can look more consistent with your poster, packaging or brand. The important part is maintaining enough readable QR modules so phones can still scan it.
Read the guide →Research poster QR code
A QR code on a research poster can connect attendees to a published article, preprint, dataset, lab website or presentation. For academic use, the destination and print quality matter as much as appearance.
Read the guide →WhatsApp QR code
A WhatsApp QR code opens a chat with a designated WhatsApp number. It can be useful for customer questions, event registrations or product inquiries without requiring visitors to manually save a phone number.
Read the guide →Before you share any QR code
- Verify the destination or encoded data.
- Test the exported or printed QR code with at least one real phone.
- Use a reliable link if you expect a poster, menu or handout to remain usable for months.
- Keep sufficient contrast, size and clear space around the QR pattern.
Ready to create one? Start with the free QR generator.