diff --git a/tools/watermark_profiles.inc.php b/tools/watermark_profiles.inc.php
index 4640088..9a627fd 100644
--- a/tools/watermark_profiles.inc.php
+++ b/tools/watermark_profiles.inc.php
@@ -18,14 +18,10 @@ function bratonien_tools_create_default_watermark_profiles()
 
   if ((int)$count[0] === 0)
   {
-    mass_inserts(
-      $table,
-      array('name', 'watermark_file', 'xpos', 'ypos', 'opacity', 'min_width', 'min_height', 'created'),
-      array(
-        array('name'=>'Oeffentlich', 'watermark_file'=>'', 'xpos'=>90, 'ypos'=>90, 'opacity'=>35, 'min_width'=>10, 'min_height'=>10, 'created'=>date('Y-m-d H:i:s')),
-        array('name'=>'Kein Wasserzeichen', 'watermark_file'=>'', 'xpos'=>90, 'ypos'=>90, 'opacity'=>0, 'min_width'=>0, 'min_height'=>0, 'created'=>date('Y-m-d H:i:s')),
-      )
-    );
+    mass_inserts($table, array('name','watermark_file','xpos','ypos','opacity','min_width','min_height','created'), array(
+      array('name'=>'Oeffentlich','watermark_file'=>'','xpos'=>90,'ypos'=>90,'opacity'=>35,'min_width'=>10,'min_height'=>10,'created'=>date('Y-m-d H:i:s')),
+      array('name'=>'Kein Wasserzeichen','watermark_file'=>'','xpos'=>90,'ypos'=>90,'opacity'=>0,'min_width'=>0,'min_height'=>0,'created'=>date('Y-m-d H:i:s')),
+    ));
   }
 }
 
@@ -37,5 +33,49 @@ function bratonien_tools_get_watermark_profiles()
 
 function bratonien_tools_save_watermark_profile()
 {
-  throw new RuntimeException('Profilverwaltung ist vorbereitet, die Bearbeitungsoberflaeche folgt im naechsten Schritt.');
+  $table = bratonien_tools_table('watermark_profiles');
+  $id = (int)($_POST['profile_id'] ?? 0);
+  $data = array(
+    'name' => trim((string)($_POST['profile_name'] ?? '')),
+    'watermark_file' => (string)($_POST['profile_file'] ?? ''),
+    'xpos' => (int)($_POST['profile_xpos'] ?? 90),
+    'ypos' => (int)($_POST['profile_ypos'] ?? 90),
+    'opacity' => (int)($_POST['profile_opacity'] ?? 35),
+    'min_width' => (int)($_POST['profile_min_width'] ?? 10),
+    'min_height' => (int)($_POST['profile_min_height'] ?? 10),
+  );
+
+  if ($data['name'] === '')
+  {
+    throw new RuntimeException('Profilname darf nicht leer sein.');
+  }
+
+  if ($id > 0)
+  {
+    $updates = array();
+    foreach ($data as $key=>$value)
+    {
+      $updates[] = $key.' = \''.pwg_db_real_escape_string($value).'\'';
+    }
+    pwg_query('UPDATE '.$table.' SET '.implode(',', $updates).' WHERE id='.$id);
+  }
+  else
+  {
+    $data['created'] = date('Y-m-d H:i:s');
+    mass_inserts($table, array_keys($data), array($data));
+  }
+
+  return array('message'=>'Wasserzeichenprofil gespeichert.');
+}
+
+function bratonien_tools_delete_watermark_profile()
+{
+  $id = (int)($_POST['profile_id'] ?? 0);
+  if ($id <= 0)
+  {
+    throw new RuntimeException('Ungueltiges Profil.');
+  }
+
+  pwg_query('DELETE FROM '.bratonien_tools_table('watermark_profiles').' WHERE id='.$id);
+  return array('message'=>'Wasserzeichenprofil geloescht.');
 }