QR code business card generator

QR codes have practical print constraints. They need a clear quiet zone — empty space around the code — to scan reliably. They need enough contrast between the code modules and the background. They cannot be too small or too compressed by JPEG artifacts. Kleido handles all of that automatically: the QR is rendered as a vector with appropriate margin and is sized to the card's footprint, not a fixed pixel value.

If you change your mind about the destination after printing, you can update a tracked or shortened URL on your end without reprinting cards — the QR points to your URL, and your URL points wherever you want.

For repeat printings, it is worth setting the QR destination to a redirect you control rather than a permanent third-party page. That gives you a single dial to turn when you want to swap the landing page, run a campaign-specific variant, or retire a destination entirely. Kleido does not host the redirect for you, but any short-link service or first-party route works — the QR encodes whatever URL you give it, and the redirect on your side decides where scanners ultimately land.