diff --git a/e107_admin/image.php b/e107_admin/image.php
index 88887ce97..c83a4d66a 100644
--- a/e107_admin/image.php
+++ b/e107_admin/image.php
@@ -696,6 +696,8 @@ class media_admin_ui extends e_admin_ui
 		'image_post_class' 				=> array('title'=> IMALAN_10, 'type' => 'userclass', 'data'=>'int', 'writeParms'=>'help=IMALAN_11&classlist=public,guest,nobody,member,admin,main,classes' ),
 		'image_post_disabled_method'	=> array('title'=> IMALAN_12, 'type' => 'boolean','writeParms'=>'enabled=IMALAN_15&disabled=IMALAN_14'),
 		'resize_method'					=> array('title'=> IMALAN_3, 'type'=>'method', 'data'=>'str'),
+		'thumbnail_quality'				=> array('title'=> "Thumbnail Quality", 'type'=>'number', 'data'=>'int', 'writeParms'=>'help=Set this as low as possible before quality loss is apparent. Max. 100'), //TODO LAN
+	
 		'im_width'						=> array('title'=> "Avatar Width", 'type'=>'number', 'data'=>'int', 'writeParms'=>'help=Avatar images will be constrained to these dimensions (in pixels)'), //TODO LAN
 		'im_height'						=> array('title'=> "Avatar Height", 'type'=>'number', 'data'=>'int', 'writeParms'=>'help=Avatar images will be constrained to these dimensions (in pixels)'),
 		'resize_dimensions'				=> array('title'=> "Resize-Image Dimensions", 'type'=>'method', 'data'=>'str'),
diff --git a/e107_core/xml/default_install.xml b/e107_core/xml/default_install.xml
index d5e551660..119e1f597 100644
--- a/e107_core/xml/default_install.xml
+++ b/e107_core/xml/default_install.xml
@@ -245,6 +245,7 @@ City, State, Country
 		<core name="subnews_htmlarea">0</core>
 		<core name="subnews_resize"></core>
 		<core name="themecss">canvas.css</core>
+		<core name="thumbnail_quality">75</core>
 		<core name="time_offset">0</core>
 		<core name="timezone">GMT</core>
 		<core name="track_online">1</core>
diff --git a/thumb.php b/thumb.php
index 7ac04d9d3..e5c44e0b5 100644
--- a/thumb.php
+++ b/thumb.php
@@ -70,6 +70,8 @@ class e_thumbpage
 	protected $_watermark = array();
 	
 	private $_placeholder = false;
+	
+	protected $_thumbQuality = null;
 
 	/**
 	 * Constructor - init paths
@@ -142,6 +144,9 @@ class e_thumbpage
 			'shadowcolor'	=> vartrue($pref['watermark_shadowcolor'], '000000'),		
 			'opacity'		=> vartrue($pref['watermark_opacity'], 20)		
 		);	
+		
+		$this->_thumbQuality = vartrue($pref['thumbnail_quality'],65);
+		
 				
 		// parse request
 		$this->parseRequest();
@@ -231,7 +236,7 @@ class e_thumbpage
 		$thumbnfo = pathinfo($this->_src_path);
 		$options = $this->getRequestOptions();
 
-		$cache_str = md5(serialize($options).$this->_src_path);
+		$cache_str = md5(serialize($options). $this->_src_path. $this->_thumbQuality);
 		$fname = strtolower('Thumb_'.$thumbnfo['filename'].'_'.$cache_str.'.'.$thumbnfo['extension']).'.cache.bin';
 
 	
@@ -269,7 +274,7 @@ class e_thumbpage
 		{
 		    $thumb = PhpThumbFactory::create($this->_src_path);
 			$sizeUp = ($this->_request['w'] > 110) ? true : false; // don't resizeUp the icon images. 
-		   	$thumb->setOptions(array('correctPermissions' => true, 'resizeUp'=>$sizeUp));
+		   	$thumb->setOptions(array('correctPermissions' => true, 'resizeUp' => $sizeUp, 'jpegQuality' => $this->_thumbQuality));
 			
 		}
 		catch (Exception $e)