QR Code Logo Embedder – Online Preview Before Print

QR code error correction is a built-in redundancy system that allows a QR code to be scanned even if part of it is damaged or obscured. There are four levels: L (7%), M (15%), Q (25%), and H (30%). When embedding a logo, the logo physically covers part of the QR code's data modules. A higher error correction level (H or Q) ensures the scanner can reconstruct the missing data. For logos covering up to 25-30% of the QR area, H-level is strongly recommended to maintain reliable scanning across different devices and lighting conditions.

Not if done correctly. A properly embedded logo—sized under 28% of the QR code area, placed in the center (away from the three corner positioning markers), and paired with H-level error correction—will scan reliably on virtually all modern smartphones. The key is to avoid covering the three large square finder patterns in the corners, as these are essential for initial detection. Always test your QR code with 2-3 different scanner apps before finalizing your design.

Industry best practice recommends keeping the logo (including its white background padding) between 15% and 28% of the total QR code width. At 15-20%, scanning is nearly instantaneous. At 22-26%, scanning remains very reliable with H-level correction. Above 30%, scan reliability begins to degrade significantly, especially in low-light conditions or with lower-quality phone cameras. We recommend starting at 22% and testing thoroughly before increasing the size.

This tool supports PNG, JPEG, SVG, and WebP formats for logo uploads, with a maximum file size of 5MB. PNG is recommended for logos with transparency, as it blends cleanly with the QR code background. SVG files work well for vector logos and scale perfectly at any size. For best results, use a logo with a transparent background or one that matches your QR code's background color.

Yes! You can fully customize both the foreground (dark modules) and background colors. However, QR scanners rely on high contrast to distinguish the dark and light modules. Always ensure a strong contrast ratio between your chosen colors—dark foregrounds on light backgrounds work best. Avoid light-on-dark combinations and colors that are too similar in brightness. The preset color combinations we provide have been tested for reliable scanning.

Before committing to a large print run, test your QR code thoroughly: (1) Download the PNG from this tool, (2) display it at the intended physical size on screen or print a test copy, (3) scan it using at least 3 different QR scanner apps (both iPhone and Android if possible), (4) test at varying distances and angles, and (5) test in the lighting conditions where it will be used (indoor, outdoor, low-light). Most built-in phone cameras now have QR scanning, but dedicated apps like QR Reader or Google Lens provide additional reliability testing.

The downloaded PNG image is generated at 400×400 pixels—a resolution suitable for both digital use (websites, social media, email signatures) and small to medium print applications (business cards, flyers, product labels). For large-format printing (posters, banners, billboards), you may want to scale the image up using vectorization tools, as the PNG format is raster-based. The 400px resolution at 300 DPI produces a print size of approximately 1.3 × 1.3 inches, which is ideal for most common use cases.

The quiet zone is the blank margin surrounding the QR code's data area—typically 4 modules wide on all sides. This white space is essential for scanners to distinguish the QR code from surrounding content. Yes, our generated QR codes include a proper quiet zone in the downloaded image. When placing the QR code in a design, avoid cropping into this margin or placing other visual elements too close to the QR code's edge.