Disclaimer

1. General Informational Notice

The barcode generation utility, documentation, and technical resources available on FreeQR Maker (“the Website”) are provided strictly for general informational, commercial, and personal utility purposes.

While our software applies international ISO/IEC 18004 standards to encode data into matrix symbology, FreeQR Maker makes no absolute guarantees regarding universal compatibility across all proprietary barcode reading software, industrial vision cameras, or legacy smartphone sensors.

2. Static Barcode Immutability

All barcodes produced by FreeQR Maker are static. Unlike dynamic QR codes that route through centralized redirect servers:

• Your data is written directly into the physical matrix pattern of dark and light modules.
• Once printed or published, the encoded destination URL, text payload, or network credentials cannot be remotely edited, corrected, or redirected.
• If the destination website URL expires, moves, or becomes inactive, the physical QR code will lead to an inaccessible endpoint. FreeQR Maker cannot recover or redirect obsolete destinations.

3. Pre-Production Testing Protocols

Users who intend to print QR codes on commercial products, packaging, menus, billboards, vehicle wraps, or promotional items must strictly observe the following verification procedure:

1. Produce a 1:1 Physical Proof: Always print a physical proof at the intended production scale on the actual substrate (paper, plastic, gloss, or matte surface).
2. Multi-Device Verification: Test scan the physical proof using at least two independent mobile operating systems (modern Apple iOS and Google Android native camera apps).
3. Environmental Lighting: Test readability under low light, direct sunlight, and fluorescent retail conditions.
4. Distance Testing: Test scan from the expected scanning distance (e.g. table distance for menus, several meters for signage).

4. Sizing and Optical Contrast Standards

Optical scanning reliability depends upon adherence to fundamental graphic engineering principles:

• Minimum Dimension: Standard URLs should never be printed smaller than 2.0 × 2.0 cm (0.8 × 0.8 inches). Long URLs with dense data matrices require proportionately larger print dimensions.
• Distance-to-Size Ratio: The recommended scanning ratio is approximately 10:1. For example, a code designed to be scanned from a distance of 1 meter (100 cm) should measure at least 10 × 10 cm.
• High Luminance Contrast: Scanners identify modules based on luminance differential. Ensure a dark foreground color on a light background. Light foregrounds on dark surfaces (inverted QR codes) are not supported by certain legacy camera apps.
• Vector Format for Print: For professional print production, use the Scalable Vector Graphics (SVG) export to avoid bitmap pixelation and edge degradation during plate rasterization.

5. Custom Styling & Center Logo Limitations

Our tool permits customization of colors, module styles, and center logos. Center logo embedding operates via Reed-Solomon Error Correction, which recalculates redundant data modules to compensate for obscured areas:

Applying large center logos, excessively rounded dots, or subtle color contrasts reduces the error tolerance buffer. If a customized QR code is exposed to physical scratches, glare, or curved surfaces, optical scanning may fail. The user assumes full responsibility for evaluating the scannability of customized designs.

6. Third-Party Destinations & Endpoints

FreeQR Maker does not inspect, review, monitor, or endorse the destination URLs or content encoded by users.

When scanning a QR code generated through our utility, the scanning device connects directly to third-party endpoints outside our control. We disclaim all responsibility for the safety, integrity, legality, or operational status of any third-party website, server, or software application accessed via a QR code.

7. Exclusion of Financial Print Liability