| No QR code appears | The input is empty, malformed or exceeds encoding capacity. | Enter a valid URL, remove unnecessary query parameters and try a shorter link. |
| The QR code does not scan | Low contrast, insufficient size or distorted module shapes may prevent detection. | Use dark modules, a light background and a larger export, then test the final version. |
| Logo causes scan failure | The center overlay covers too much encoded information. | Shrink or remove the logo, choose H correction and re-test. |
| Gradient makes QR unreliable | Parts of the code are too close to the background color. | Increase contrast or return to a solid dark foreground. |
| Transparent PNG fails over photo | The underlying image interferes with module contrast and quiet zone. | Put the QR on a light solid panel with clear margins. |
| Code works on screen but not in print | Printer resolution, glare, paper texture or small size changes readability. | Use SVG or high-resolution PNG and scan a printed proof at realistic distance. |
| QR opens the wrong page | An incorrect URL was entered or a redirect points elsewhere. | Verify the exact destination and regenerate the static code if necessary. |
| Encoded URL no longer works | The page, domain or redirect was moved or deleted. | Restore the destination or create and redeploy a code using a working URL. |
| HTTP warning appears | The destination uses an insecure link scheme. | Use an approved HTTPS version of the destination when available. |
| Suspicious domain warning appears | The URL may include unusual characters, embedded credentials or look-alike spelling. | Verify ownership and spelling; avoid publishing the link until its safety is established. |
| The code appears too dense | A long URL generates many small modules. | Remove unneeded parameters or use a reliable short URL that you control. |
| CSV import skips items | The source list contains malformed rows, extra delimiters or empty destinations. | Review CSV quoting, URL field placement and labels; retry with a small test set. |
| ZIP batch misses expected images | Some inputs were invalid or bulk generation failed for selected rows. | Compare output filenames with the source list and regenerate failed entries. |
| SVG looks different in design software | The destination editor may interpret vector attributes differently. | Inspect the imported shapes and export a compatible high-resolution PNG if necessary. |
| JPG is fuzzy | Lossy compression softened edges around the QR modules. | Export a clean PNG or SVG and avoid repeated JPG recompression. |
| PDF appears too small | The graphic was placed at an unsuitable size on the PDF page. | Adjust the output or print scale and test the printed dimensions. |
| Printed color looks too light | Ink, stock or printer calibration reduced contrast. | Switch to a darker foreground and test a physical sample. |
| QR works on some phones only | Camera software, lighting or reader tolerance differs. | Simplify the design, enlarge the code and test common camera apps. |
| Scan-quality score looks good but scan fails | Automated checks cannot predict every printed surface or reader. | Use real scan tests and simplify any problematic styling. |
| Local saved design disappeared | Browser data cleanup or private mode cleared local storage. | Restore an exported file or recreate the preset; save important designs externally. |
| The QR does not count scans | Static QR codes lack a built-in tracking service. | Use an analytics-enabled destination or a separate approved redirect for campaign measurement. |
| Need to edit a printed QR URL | The destination is embedded in the static pattern. | Generate a new code or manage a redirect you already control. |
| Destination requires sign-in | The QR encodes a link but cannot grant access rights. | Link to an appropriate public page or provide authorized access instructions. |
| Users hesitate to scan | The printed code lacks a clear purpose or trusted destination cue. | Add a short call to action and display the official domain nearby. |