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docs/Built-In-Output-QRGdImage.md

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+# QRGdImage
+
+[Class `QRGdImage`](https://github.com/chillerlan/php-qrcode/blob/main/src/Output/QRGdImage.php): [GdImage](https://www.php.net/manual/book.image) raster graphic output (GIF, JPG, PNG)
+
+
+## Options that affect this module
+
+| property                       | type           |
+|--------------------------------|----------------|
+| `$returnResource`              | `bool`         |
+| `$imageBase64`                 | `bool`         |
+| `$bgColor`                     | `mixed`        |
+| `$drawLightModules`            | `bool`         |
+| `$drawCircularModules`         | `bool`         |
+| `$circleRadius`                | `float`        |
+| `$keepAsSquare`                | `array`        |
+| `$scale`                       | `int`          |
+| `$imageTransparent`            | `bool`         |
+| `$transparencyColor`           | `mixed`        |
+| `$pngCompression`              | `int`          |
+| `$jpegQuality`                 | `int`          |
+
+
+### Options that have no effect
+
+| property                       | reason |
+|--------------------------------|--------|
+| `$connectPaths`                | N/A    |
+| `$excludeFromConnect`          | N/A    |