How to test a QR code before printing it
The worst time to discover a QR code doesn't scan is after it's printed on a thousand flyers. A quick test beforehand catches almost every problem.
Your pre-print checklist
- Scan it with more than one phone — try an iPhone and an Android.
- Confirm it opens exactly the right link or content, with no typo in the destination.
- Test it at the actual printed size, from the distance people will really scan it.
- Check the quiet-zone margin is intact and nothing crops or covers the code.
- Try it in the lighting where it'll live — dim restaurants and glary windows are common failure spots.
If it fails the test
Make it bigger, increase the contrast, shorten the encoded link to simplify the pattern, or add margin. Our 'QR code not scanning' guide covers each fix.
FAQ
- What's the most common reason a printed QR code fails?
- Being printed too small for the scanning distance, followed by low contrast and a missing quiet zone. Testing at the real size and distance before printing catches all three.
Scan and create QR codes in a tap
Scan QR Code Master is an ad-free QR and barcode scanner and generator, free to download for iPhone, iPad, and Mac — with history and one-tap sharing.
Download on the App StoreRelated guides
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