diff --git a/readme.md b/readme.md
index b680e6e..ef78866 100644
--- a/readme.md
+++ b/readme.md
@@ -38,21 +38,21 @@ AVIF is preferred over WEBP in case both upgrades are enabled.
 
 # Usage
 
-Order of parameters:
+Order of parameters is dependant on the router, the default is:
 
-1. Image file. `string`
-2. Dimensions. `string`
+1. Dimensions & modifiers. `string`
+2. Image file. `string`
 3. Format. `string`
 
-## Dimensions
+## Dimensions & modifiers
 
-Allowed variants:
+### Dimensions:
 
 - `100x100` - width and height must be equal or less, resized according to AR.
 - `x100` - height must be equal or less.
 - `100x` - width must be equal or less.
 
-Modificators:
+### Modifiers:
 
 - Cropping:
 	- width: `l` - left, `c` - center, `r` - right.
@@ -61,12 +61,14 @@ Modificators:
 	- `ifresize-100x200` - do not resize if the source is smaller.
 - Force dimensions:
 	- `100x200!` - resize to these dimensions, regardless of AR.
+- Quality:
+	- `-q50` - set custom quality
 
-Formats:
+## Format:
 
 - The format parameter can be used to switch between image file formats, e.g. `<source srcset="">` in `<picture>` tag for converting jpegs to WEBP/AVIF.
 
-## Types
+# Types
 
 Insert the src manually:
 
diff --git a/src/Presenters/ResizePresenter.php b/src/Presenters/ResizePresenter.php
index 60b9ea2..31b2c53 100644
--- a/src/Presenters/ResizePresenter.php
+++ b/src/Presenters/ResizePresenter.php
@@ -43,7 +43,7 @@ public function startup(): void
 	public function actionDefault(
 		string $file,
 		?string $params = null,
-		?string $format = null
+		?string $format = null,
 	): void {
 		try {
 			$image = $this->resizer->process(
diff --git a/src/Resizer.php b/src/Resizer.php
index 4447907..f4ac11c 100644
--- a/src/Resizer.php
+++ b/src/Resizer.php
@@ -39,11 +39,11 @@ public function __construct(
 		private readonly OutputFormat $outputFormat,
 	)
 	{
-		$this->cacheDir = $config->getTempDir() . $config->getCache();
+		$this->cacheDir = $this->config->getTempDir() . $this->config->getCache();
 		FileSystem::createDir($this->cacheDir);
 
 		/** @var AbstractImagine $library */
-		$library = implode('\\', ['Imagine', $config->getLibrary(), 'Imagine']);
+		$library = implode('\\', ['Imagine', $this->config->getLibrary(), 'Imagine']);
 		$this->imagine = new $library;
 	}
 
@@ -51,7 +51,7 @@ public function __construct(
 	public function process(
 		string $path,
 		?string $params,
-		?string $format = null
+		?string $format = null,
 	): string {
 		$sourceImagePath = $this->getSourceImagePath($path);
 
@@ -63,7 +63,7 @@ public function process(
 		if (!$this->thumbnailExists($thumbnailPath)) {
 			try {
 				$thumbnail = $this->processImage($sourceImagePath, $geometry);
-			} catch (RuntimeException $e) {
+			} catch (RuntimeException) {
 				throw new ImageNotFoundOrReadableException('Unable to open image - wrong permissions, empty or corrupted.');
 			}
 
@@ -77,7 +77,7 @@ public function process(
 				$thumbnail->interlace(ImageInterface::INTERLACE_LINE);
 			}
 
-			$thumbnail->save($thumbnailPath, $this->config->getOptions());
+			$thumbnail->save($thumbnailPath, $this->config->getOptions($geometry->getResizerParams()->getQuality()));
 		}
 
 		return $thumbnailPath;
diff --git a/src/ResizerConfig.php b/src/ResizerConfig.php
index d82e685..4d74841 100644
--- a/src/ResizerConfig.php
+++ b/src/ResizerConfig.php
@@ -136,6 +136,7 @@ public function getCompressionPng(): int
 
 
 	/**
+	 * @param int<0,100>|null $quality
 	 * @return array{
 	 * 	avif_quality: int<0, 100>,
 	 * 	webp_quality: int<0, 100>,
@@ -143,13 +144,22 @@ public function getCompressionPng(): int
 	 * 	png_compression_level: int<0, 9>
 	 * }
 	 */
-	public function getOptions(): array
+	public function getOptions(?int $quality = null): array
 	{
+
+		if ($quality !== null) {
+			$qualityPng = (int) round($quality / 10);
+
+			if ($qualityPng > 9) {
+				$qualityPng = 9;
+			}
+		}
+
 		return [
-			'avif_quality' => $this->getQualityAvif(),
-			'webp_quality' => $this->getQualityWebp(),
-			'jpeg_quality' => $this->getQualityJpeg(),
-			'png_compression_level' => $this->getCompressionPng(),
+			'avif_quality' => $quality ?? $this->getQualityAvif() ,
+			'webp_quality' => $quality ?? $this->getQualityWebp(),
+			'jpeg_quality' => $quality ?? $this->getQualityJpeg(),
+			'png_compression_level' => $qualityPng ?? $this->getCompressionPng(),
 		];
 	}
 
diff --git a/src/ResizerParams.php b/src/ResizerParams.php
index 2e83ef1..a6ac59a 100755
--- a/src/ResizerParams.php
+++ b/src/ResizerParams.php
@@ -9,7 +9,7 @@ class ResizerParams
 	/**
 	 * @param positive-int|null $width
 	 * @param positive-int|null $height
-	 * @param positive-int|null $quality
+	 * @param int<0,100>|null $quality
 	 */
 	public function __construct(
 		private readonly bool $ifresize,
@@ -74,7 +74,7 @@ public function hasWidth(): bool
 	}
 
 
-	/** @return positive-int|null */
+	/** @return int<0,100>|null */
 	public function getHeight(): ?int
 	{
 		return $this->height;
diff --git a/src/ResizerParamsParser.php b/src/ResizerParamsParser.php
index d15b695..cf403b7 100755
--- a/src/ResizerParamsParser.php
+++ b/src/ResizerParamsParser.php
@@ -19,7 +19,7 @@ class ResizerParamsParser
 			(!?)                          # force dimensions, disregard aspect ratio
 			([+-]?[0-9]*)                 # horizontal margin, unused
 			([+-]?[0-9]*)                 # vertical margin, unused
-			(?:-q([1-9][0-9]?|100))?      # quality, 1-100
+			(?:-q([0-9][0-9]?|100))?      # quality, 0-100
 		)$
 	~x';
 
@@ -72,7 +72,7 @@ public function getParams(): ResizerParams
 	}
 
 
-	/** @return positive-int|null */
+	/** @return int|null */
 	private function parseNumericValueToIntOrNull(string $value): ?int
 	{
 		if (strlen($value) === 0) {
@@ -82,11 +82,12 @@ private function parseNumericValueToIntOrNull(string $value): ?int
 		if (is_numeric($value)) {
 			$int = (int) $value;
 
-			if ($int > 0) {
+			if ($int >= 0) {
 				return $int;
 			}
 		}
 
 		return null;
 	}
+
 }
diff --git a/tests/ResizerParamsParserTest.php b/tests/ResizerParamsParserTest.php
index a010ef4..73ee70e 100644
--- a/tests/ResizerParamsParserTest.php
+++ b/tests/ResizerParamsParserTest.php
@@ -278,6 +278,44 @@ public function testQuality2(): void
 	}
 
 
+	public function testQuality3(): void
+	{
+		$expected = new ResizerParams(
+			false,
+			null,
+			null,
+			false,
+			null,
+			null,
+			100,
+			200,
+			0,
+		);
+
+		$actual = $this->parse('100x200-q0');
+		$this->assertEquals($expected, $actual);
+	}
+
+
+	public function testQuality4(): void
+	{
+		$expected = new ResizerParams(
+			false,
+			null,
+			null,
+			false,
+			null,
+			null,
+			100,
+			200,
+			100,
+		);
+
+		$actual = $this->parse('100x200-q100');
+		$this->assertEquals($expected, $actual);
+	}
+
+
 	public function testWrongKeyword1(): void
 	{
 		$this->expectException(CouldNotParseResizerParamsException::class);