Keynote Slide Best Practice
When presenting in a conference auditorium, attendees seated in row 10 are 10 to 15 meters away from the projector screen. A tiny 2-inch corner QR code is completely unreadable from the audience. For live keynotes, dedicate a full slide to your QR code, size it to occupy at least 30% of the screen height, and hold it on screen while concluding your talk.
Whether you are pitching investors, leading an all-hands meeting, or speaking at an industry summit, the closing slide is where conversions happen. Instead of displaying a complex, unclickable URL like mycompany.com/q3-whitepaper-download-final that nobody will type into their phone, an on-screen QR code lets the entire room take action instantly.
1. The Auditorium Sizing Standard
Auditoriums and conference halls require much larger relative sizing than desktop webinars:
- Webinar / Zoom Streams (Attendees on Laptops): The QR code can be modest (15% to 20% of screen height) in the lower-third or corner.
- Boardroom Meetings (2 to 4 meters away): The QR code should measure at least 200px to 300px on a 1080p slide.
- Conference Keynotes (10 to 20 meters away): Dedicate the entire center of your closing slide to the QR code, surrounded by a prominent call-to-action like “Scan for the Slide Deck & Resources”.
2. Where to Place QR Codes in Slide Decks
Strategic slide placements that drive the highest engagement:
The Opening Welcome Slide
Displayed while attendees are taking their seats before the keynote begins. Perfect for pre-session polls, agenda downloads, or Wi-Fi login credentials.
The Dedicated Closing Q&A Slide
Keep this slide projected during the entire 10-minute Q&A period. It gives audience members plenty of time to pull out their phones and scan your contact information or bonus materials.
3. Why Keynote Speakers Use Dynamic QR Codes
Conference slides are often exported to PDF and shared on LinkedIn, slide repositories, or sent out by event organizers via email after the summit.
If you use a static QR code and your special conference promo expires next week, future viewers of your shared slide deck get a dead page. With HoldQR Dynamic QR Codes:
- Live Switch: During your talk, the QR code points to a live survey. After your talk, you switch the destination to your email newsletter or calendar booking link.
- Event Attribution: Track exactly how many scans originated from Tech Summit Chicago vs Marketing Expo London.
Conclusion
Turn passive slide viewers into active leads. Export high-resolution presentation QR cards directly from the HoldQR Design Studio today.