To add a contact QR code to presentation slides, download the code as a PNG, then insert it like any picture: in PowerPoint use Insert > Pictures > This Device, in Google Slides use Insert > Image > Upload from computer. Make it large, put it on a plain light background with a short label like “Scan to save my contact,” and test it from the back of the room before you present.
What you need before you start
You need two things: a contact page the code points to, and the QR code saved as an image file. Everything else is placement.
The page matters more than the code. If the code points to a digital business card, people who scan land on a page with a Save Contact button, your links and your photo. If you’d rather pack your details into the code itself, read how a vCard QR code works first.
For the image file, a QR vendor guide recommends exporting the code as a crisp PNG or a vector SVG. A blurry screenshot scaled up on a projector is where most slide codes fail.
How to add the QR code in PowerPoint
In PowerPoint, a contact QR code goes in as an ordinary picture from the Insert tab. Microsoft’s help page doesn’t describe a built-in QR maker, so you bring the image in.
On Windows, Microsoft’s steps are: “On the Insert tab, in the Images group, select Pictures and then select This Device.” Browse to your QR code file and select Insert.
On a Mac, open the Insert menu, point at Picture, and select Picture From File. Dragging the file from File Explorer or Finder onto the slide also works.
Hold Shift while you drag a corner handle. A stretched QR code can stop scanning.
How to add the QR code in Google Slides and Keynote
Google Slides and Keynote both treat a contact QR code as a normal image, inserted from the menu or dragged onto the slide.
In Google Slides, click Insert > Image and choose Upload from computer, which inserts an image saved on your device. By URL works if the image is hosted online. To swap codes, drag the new image onto the old one.
In Keynote on a Mac, click the Media button in the toolbar, then “click Choose Photos or Videos, navigate to the image you want to use, then click the image.” To update a code later, select it, open the Image tab in the Format sidebar and click Replace. Apple notes the new image keeps the original’s dimensions, so the layout stays put.
How big the contact QR code should be on the slide
A contact QR code on a slide should be much larger than you’d expect, because people scan it from their seats, not from the stage. The common rule of thumb comes from one QR vendor: “each side of your QR Code should be one inch for every one foot of scanning distance.”
Measure the projected image, not your laptop. A code that looks huge on your monitor can shrink on a small conference screen.
- Contrast. The same guide stresses extremely high contrast: dark code, light background. Skip the dark theme behind it.
- Margin. Keep logos, text and slide numbers off the code.
- Label. “Scan to save my contact” beats a bare code.
- Time. Leave the slide up until the phones come out.
Which slides should carry your contact QR code
Put the contact QR code on your closing slide, and consider a smaller copy on the title slide. The closing slide is where people decide to connect, and it often stays up through questions.
Picture a speaker at a regional sales meetup who ends on “Scan to save my contact” beside a large code linking to their digital card. During questions, people scan, tap Save Contact, and the contact lands in their address book. Afterwards the speaker has names to follow up with, not a stack of lost paper cards.
The code still works in a recording or a PDF of the deck. For online talks, the same approach works as a QR code on your Zoom background.
How to test the code before you present
Test the contact QR code in full presentation mode, from the farthest seat, with more than one phone. The vendor guide says the same: the absolute back of the room, full presentation mode.
- Start the slideshow on the actual projector or screen.
- Walk to the back row and scan with your phone’s camera app.
- Get a second person to try, ideally one iPhone and one Android between you.
- Tap through and save the contact, so you know the last step works.
If the scan fails, make the code bigger, raise the contrast or clear what’s crowding it. Projectors wash out colours, and a pale code that looks fine on your laptop can vanish on the screen.
Using a QRCard code on your slides
A QRCard QR code links to your live card, so the code on your slides stays valid when your details change. Download the code from your dashboard and insert it with the steps above.
A scan opens the card in the browser, no app needed. Save Contact creates a .vcf file that opens in the iOS or Android Contacts app. On Pro, Mutual Exchange lets viewers send you their name, email, phone and a note, and full analytics show views and saves with traffic sources. The features page lists the rest.
The limitation: the card is a web page, so scanners need a data connection. In a basement venue with no signal, it won’t open, and a code that holds your details directly is the better choice. More on sharing your card with no signal.
My take
Put the contact QR code on the closing slide and leave it up for the whole Q&A. Many speakers flash it for a few seconds and move on, and that’s where most scans get lost. Then use the saved contacts for a quick follow-up after the conference while people still remember your talk.
FAQ
Does PowerPoint have a built-in QR code generator?
Microsoft’s help pages don’t describe one. The simple route is to make the code elsewhere, save it as a PNG, and insert it with Insert > Pictures > This Device.
How big should a QR code be on a slide?
One QR vendor’s rule of thumb is one inch per side for every one foot of scanning distance. Treat that as a starting point and test it from the back row in full presentation mode.
Which slide should have my contact QR code?
Put it on the closing slide, where people expect to connect, and leave it up during questions. Adding it to the title slide as well catches people who arrive early.
Should the QR code hold my contact details or a link?
A link to a digital business card is usually the better choice for slides. The code stays simpler, and you can change your details later without editing the deck.