Business use
How to Add a Useful QR Code to an Email Signature
Add a QR code to an email signature with a clear destination, a clickable fallback and practical checks for desktop and mobile readers.
Quick answer
Use a small, clear PNG QR code in your email signature and include a normal clickable link beside it. A QR code is most useful when someone reads the email on one screen and scans it with another device.
In this article
Give the code one specific job
An email signature should make the next action easy. Choose one destination: a booking page, a portfolio, a professional profile or a contact download. A code labeled “View my work” is clearer than an unexplained square beside several social icons.
Consider the reader's device. A person reading on a laptop can scan with a phone. A person already reading on a phone may prefer to tap a link. Make the destination accessible both ways instead of forcing everyone into a scanning workflow.
Prepare the image and its fallback
- Open the destination in a signed-out browser and confirm it works for the intended audience.
- Generate a website QR code using the full HTTPS address.
- Download a PNG for broad compatibility with ordinary email editors.
- Keep the image square and preserve its clear surrounding border when placing it.
- Add a text link with the same destination, plus a short description of what opens.
Do not stretch a tiny screenshot of a QR code into a larger image. Start with the downloaded file, resize proportionally and send yourself a test message. If the image looks soft after sending, adjust the signature asset or displayed size and test again.
Add it in Gmail
On Gmail for desktop, open Settings, choose See all settings and find Signature under General. Create or select the signature, use the editor's image control to insert the QR PNG, and add the accompanying text link. Choose the appropriate defaults for new messages or replies, then save changes. Google's signature help explains the current settings.
Other email clients and company-managed signatures have different controls. If your organization centrally manages signatures, supply the final PNG, destination URL, label and fallback text to the person maintaining that template rather than trying to override it.
Use this email-specific test checklist
| Test | What success looks like |
|---|---|
| Desktop message | A second device scans the displayed image |
| Mobile message | The text link is easy to tap |
| Images blocked | The destination remains understandable from text |
| Reply or forward | The signature stays readable without dominating the message |
Image display, resizing and dark-mode treatment can vary between clients. Test the received email, not only the composition window. Add descriptive alternative text if your editor supports it, but do not rely on alternative text as the only fallback.
Keep the signature maintainable
A stable page on your own domain is useful if your calendar provider or portfolio platform changes. Update the page while preserving the address in the code and text link. When replacing the signature asset, check the default used for both new emails and replies so the old version does not continue circulating.
Common questions
Should the QR image be clickable too?
It can be if the editor supports linking images. Keep the ordinary text link as well, because some recipients block images or cannot conveniently scan their current screen.
Should I use a giant QR code to make scanning easier?
No fixed size works for every client. Choose a restrained size, send realistic tests and enlarge only as needed for reliable scanning.
Put this guide into practice
Generate your static QR code in your browser, download it and test the final result.
Create your signature QR code ↗Sources and further reading
This guide describes the current QRNest tools. Other apps and destination services may behave differently. Report an error or suggest an update.