QRジャマーレイヤー

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Upload a QR image and add a noise layer to reduce casual copying while keeping it scannable.

Click or drag an image here

JPG, PNG, GIF supported

Quick presets

Jam pattern

Mixed (recommended) Texture grain Random noise Scattered dots Geometric lines

Protect finder patterns (better scan rate) Light areas only (preserve dark modules)

Jam strength 50%

Layer opacity 70%

Lower values are more transparent

Upload an image to preview

Adjust strength carefully — too high may hurt scan reliability.