diff --git a/debian/changelog b/debian/changelog
index 68e33809..9f888967 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,4 +1,4 @@
-hedera-web (1.407.25) stable; urgency=low
+hedera-web (1.407.26) stable; urgency=low
 
   * Initial Release.
 
diff --git a/package.json b/package.json
index a43c1d45..11b15a15 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hedera-web",
-  "version": "1.407.25",
+  "version": "1.407.26",
   "description": "Verdnatura web page",
   "license": "GPL-3.0",
   "repository": {
diff --git a/rest/image/sync.php b/rest/image/sync.php
index 1c65609f..7882ebaf 100644
--- a/rest/image/sync.php
+++ b/rest/image/sync.php
@@ -3,8 +3,7 @@
 require_once(__DIR__.'/util.php');
 
 /**
- * Syncronizes the data directory with the database, this may take
- * some time.
+ * Syncronizes the data directory with the database, this may take some time.
  */
 class Sync extends Vn\Lib\Method {
 	private $trashSubdir;
@@ -22,89 +21,64 @@ class Sync extends Vn\Lib\Method {
 		set_time_limit(0);
 		$this->trashSubdir = date('YmdHis');
 	
-		$checkCount = 0;
-		$query = 'SELECT DISTINCT `%3$s` FROM `%1$s`.`%2$s`
-			WHERE `%3$s` IS NOT NULL AND `%3$s` != \'\'';
-
+		$deleteCount = 0;
 		$dir = opendir($this->dataDir);
-		
+
 		if ($dir)
-		while ($schema = readdir($dir))
-		if (!in_array($schema, ['.', '..'])) {
-			$info = $this->util->loadInfo($schema);
-			$schemaPath = "{$this->dataDir}/$schema";
-			
-			// Deletes unreferenced schemas.
-			
+		while ($collection = readdir($dir))
+		if (!in_array($collection, ['.', '..'])) {
+			$info = $this->util->loadInfo($collection);
+			$collectionPath = "{$this->dataDir}/$collection";
+
+			// Deletes unreferenced collections.
+
 			if (!isset($info)) {
-				$this->moveTrash($schema);
+				$this->recycle($collection);
 				continue;
 			}
 
 			// Deletes unreferenced sizes.
 
-			$schemaDir = opendir($schemaPath);
+			$collectionDir = opendir($collectionPath);
 
-			if ($schemaDir)
-			while ($size = readdir($schemaDir))
+			if ($collectionDir)
+			while ($size = readdir($collectionDir))
 			if (!in_array($size, ['.', '..', 'full'])
 			&& !isset($info['sizes'][$size]))
-				$this->moveTrash("$schema/$size");
-
-			// Gets a list of referenced images from the database.
-
-			$result = $db->query(sprintf($query
-				,$info['schema']
-				,$info['table']
-				,$info['column']
-			));
-			
-			if (!$result)
-				continue;
-
-			$map = [];
-
-			while ($row = $result->fetch_row()) {
-				$map[$row[0]] = TRUE;
-				$checkCount++;
-			}
-
-			$result->free();
+				$this->recycle("$collection/$size");
 
 			// Deletes unreferenced images.
-			
-			$this->cleanImages($schema, 'full', $map);
 
-			foreach ($info['sizes'] as $size => $i)
-				$this->cleanImages($schema, $size, $map);
+			$res = $db->query(
+				'SELECT `name`, collectionFk
+					FROM `image`
+					WHERE nRefs = 0 AND collectionFk = #collection',
+				['collection' => $collection]
+			);
+
+			while ($image = $res->fetch_object()) {
+				$deleteCount++;
+				$this->recycle("$collection/full/{$image->name}.png");
+
+				foreach ($info['sizes'] as $size => $i)
+					$this->recycle("$collection/$size/{$image->name}.png");
+			}
+
+			$res->free();
 		}
 
-		echo "Syncronization finished.\n";
-	}
-	
-	function cleanImages($schema, $size, &$map) {
-		$sizePath = "{$this->dataDir}/$schema/$size";
-		
-		if (!is_dir($sizePath))
-			return;
-		
-		$iter = new DirectoryIterator($sizePath);
-
-		for (; $iter->valid(); $iter->next())
-		if (!$iter->isDir() && strripos($iter->getFilename(), '.png', -4) !== FALSE) {
-			$name = substr($iter->getFilename(), 0, -4);
-
-			if (!isset($map[$name]))
-				$this->moveTrash("$schema/$size/". $iter->getFilename());
-		}
+		echo "Syncronization finished. $deleteCount images moved to trash.\n";
 	}
 	
 	/**
-	 * Moves a data directory to the trash.
+	 * Moves data file to trash.
 	 *
-	 * @param string $file The file to move to the trash
+	 * @param string $file File or directory to move
 	 */
-	function moveTrash($file) {
+	function recycle($file) {
+		$filePath = "{$this->dataDir}/$file";
+		if (!file_exists($filePath)) return;
+
 		$trashBasedir = "{$this->dataDir}/.trash/". $this->trashSubdir;
 		$trashdir = "$trashBasedir/". dirname($file);
 	
@@ -112,9 +86,8 @@ class Sync extends Vn\Lib\Method {
 			mkdir($trashdir, 0775, TRUE);
 
 		rename(
-			"{$this->dataDir}/$file",
+			"$filePath",
 			"$trashBasedir/$file"
 		);
 	}
 }
-
diff --git a/rest/image/util.php b/rest/image/util.php
index 2b43d561..7921e1de 100644
--- a/rest/image/util.php
+++ b/rest/image/util.php
@@ -15,17 +15,17 @@ class Util {
 	}
 
 	/**
-	 * Loads information for specified schema.
+	 * Loads information for specified collection.
 	 *
-	 * @param string $schema The schema name
+	 * @param string $collection The schema name
 	 */
-	function loadInfo($schema) {
+	function loadInfo($collection) {
 		$db = $this->app->getSysConn();
 	
 		$info = $db->getRow(
 			'SELECT id, maxWidth, maxHeight, `schema`, `table`, `column` 
-				FROM imageCollection WHERE name = #schema'
-			,['schema' => $schema]
+				FROM imageCollection WHERE name = #collection'
+			,['collection' => $collection]
 		);
 		
 		if (!$info)