If you have ever stood in front of a room and watched a great talk end with nothing more than polite applause, you already know the problem. The attention is there. The interest is there. But the moment people walk out the door, most of that energy disappears with them.

A QR code linked to your newsletter sign-up form is one of the simplest ways to capture that moment while it is still warm. Add it to a slide, a handout, or a name badge, and anyone in the room can join your list in seconds, no typing, no searching for your website, no forgetting to do it later.

This is especially useful if you run events, training sessions, or talks. Your audience is already engaged with you. A QR code for newsletter sign ups turns that one-off engagement into an ongoing relationship, which is exactly what email is for.

Why QR Codes Work So Well for In-Person Sign-Ups

People rarely sign up for a newsletter after the fact. They mean to, but by the time they are back at their desk, the moment has passed and so has the motivation.

A QR code removes every point of friction between interest and action:

• No need to remember a website address or search for you later
• No retyping a long URL on a small phone keyboard
• Works from a slide, poster, handout, badge, or table tent without any extra equipment
• Captures sign-ups at the exact moment your audience is most engaged with you

Because a well-managed list is not just organised, it is engaged. The people who scan a code right after hearing you speak are warm leads. They already know who you are and what you offer, which makes them far more likely to open and act on what you send next.

How to Create a QR Code in Canva

Canva has a free, built-in QR code generator, so you do not need a separate tool or account to create one. Here is how to set it up:

1. Open Canva and either start a new design (such as a slide, poster, or handout) or open an existing one you want to add the code to.

2. In the left-hand sidebar, click Apps.

3. Search for “QR Code” and select the official Canva QR Code app from the results.

4. Paste in the link to your Mail Blaze subscription form. This is the URL the code will open when scanned.

5. Click Generate code. The QR code will drop straight onto your design, ready to resize and reposition.

6. Adjust the foreground colour, background colour, and margin if you want it to match your branding, but keep strong contrast between the code and its background so it scans reliably.

7. Download your design as a high-resolution PNG (for screens) or PDF Print (for posters and handouts), and always test the code with your own phone before using it live.

Canva also offers a dynamic QR code option through a third-party integration, which lets you update the destination link later without reprinting. This is worth considering if you reuse the same printed materials across multiple events and want the flexibility to point the code at a different campaign or form over time.

Getting Your Subscription Form Link

Before you generate the code, you need the link Canva will encode. In Mail Blaze, this is the URL of your subscription form, the same form you would normally embed on your website or share directly with new contacts.

A few things worth checking before you generate the code:

• Double-check that you are using the correct form link. If you don’t want to use the page your form is hosted on via Mail Blaze’s website, ensure your embedded for is very clearly visible on the page of your website you are going to create the QR code for
• Test the form on a mobile browser first, since most people will be filling it in on their phone
• Keep the form itself short. Name and email address is usually enough for an in-person sign-up, you can always learn more about a subscriber over time through segmentation
• Don’t forget that you can create a specific form in your account for a specific event if you’d like. Speak to the team if you’re unsure.

Putting the QR Code to Work at Your Event

Where you place the code matters as much as how you generate it. A few places that consistently perform well:

• The closing slide of your talk or training, left up while you take questions
• A printed table tent or handout at registration or networking tables
• Name badges or lanyards, so the code is in front of people for the whole event
• Follow-up email or feedback form, for anyone who missed the chance to scan in person

Always give people a reason to scan, not just the code itself. A short line like “Scan to get my notes and future updates straight to your inbox” does more work than the code alone.

From Scan to Subscriber: What Happens Next

Once someone scans the code and submits the form, they land directly in your Mail Blaze list, ready for a welcome email and whatever sequence you have set up next. This is where the Engagement Loop continues:

Connect by capturing the sign-up, Create with a strong welcome message, Cultivate the relationship through ongoing content, and Compound the results as that subscriber engages more over time.

If you are running List Health Check on upload, you can also see straight away whether any sign-ups need attention, which keeps your list clean from the very first send.

Frequently Asked Questions

Do I need a Canva Pro account to create a QR code?

No. Canva's built-in QR code generator is free on every plan, including the free version of Canva.

Will the QR code expire?

A standard QR code created through Canva's free generator is static and will not expire, but it always points to the same link. If you want to change the destination later without reprinting your materials, look at Canva's dynamic QR code option.

What size should the QR code be for a printed handout or poster?

As a general rule, keep the code no smaller than 2 x 2 cm for close-up materials like flyers or table tents, and size it up significantly for posters or slides meant to be scanned from across a room.

Can I track how many people scan the code?

Canva's free static QR codes do not include built-in scan tracking. If tracking matters to you, use a dynamic QR code service, or simply monitor new sign-ups in Mail Blaze around the time of your event. If you use a specific form for these purposes, you’ll have a genuine number of how many people utilised the QR code.

Turn Every Talk into a Growing List

A QR code will not replace a strong content strategy, but it removes one of the biggest barriers between a great talk and a growing list: the gap between interest and action. For speakers, facilitators, and event marketers, it is a small addition with a outsized return.

If you do not yet have a subscription form set up in Mail Blaze, that is the first step, then the QR code is a five-minute job in Canva.