diff --git a/wbce/modules/output_filter/filter_routines.php b/wbce/modules/output_filter/filter_routines.php
index 801aa9fe1..8e6a31a25 100644
--- a/wbce/modules/output_filter/filter_routines.php
+++ b/wbce/modules/output_filter/filter_routines.php
@@ -102,10 +102,17 @@ function executeFrontendOutputFilter($content) {
             }
         }
         
-
-
+/* ### filter type: full qualified URLs to relative URLs##################### */
+        if(OPF_REMOVE_SYSTEM_PH){
+            if (file_exists($sFilterDirectory.'filterRemoveSystemPh.php ')) {
+                require_once($sFilterDirectory.'filterRemoveSystemPh.php ');
+                $content = doFilterRemoveSystemPh($content);
+            }
+        }
         
 
+ 
+
         
         
         
@@ -172,8 +179,13 @@ function executeBackendOutputFilter($content) {
             }
         }       
         
-        
-        
+/* ### filter type: full qualified URLs to relative URLs##################### */
+        if(OPF_REMOVE_SYSTEM_PH_BE){
+            if (file_exists($sFilterDirectory.'filterRemoveSystemPh.php ')) {
+                require_once($sFilterDirectory.'filterRemoveSystemPh.php ');
+                $content = doFilterRemoveSystemPh($content);
+            }
+        }
         
     
 /* ### filter type: protect email addresses ################################# */
diff --git a/wbce/modules/output_filter/filters/filterRemoveSystemPh.php  b/wbce/modules/output_filter/filters/filterRemoveSystemPh.php 
new file mode 100644
index 000000000..18e5efb08
--- /dev/null
+++ b/wbce/modules/output_filter/filters/filterRemoveSystemPh.php 	
@@ -0,0 +1,5 @@
+<?php 
+ function doFilterRemoveSystemPh($content) {
+    $content=preg_replace("/<!--\(PH\).*?-->/s" ,"", $content);
+    return $content;
+ }
\ No newline at end of file
diff --git a/wbce/modules/output_filter/install.php b/wbce/modules/output_filter/install.php
index b2b67e916..f12e2b656 100644
--- a/wbce/modules/output_filter/install.php
+++ b/wbce/modules/output_filter/install.php
@@ -31,6 +31,7 @@
 Settings::Set('opf_wblink',1, false);
 Settings::Set('opf_short_url',0, false);
 Settings::Set('opf_sys_rel',1, false);
+Settings::Set("opf_remove_system_ph", 1, false)  ; 
 
 //backend
 Settings::Set('opf_droplets_be',1, false);
@@ -38,6 +39,7 @@
 Settings::Set('opf_move_stuff_be',1, false);   
 Settings::Set('opf_replace_stuff_be',1, false); 
 Settings::Set('opf_css_to_head_be',1);
+Settings::Set("opf_remove_system_ph_be", 1, false)    ;
 
 //Setting version
 include ("info.php");
diff --git a/wbce/modules/output_filter/languages/DE.php b/wbce/modules/output_filter/languages/DE.php
index 17064e949..79f3a0852 100644
--- a/wbce/modules/output_filter/languages/DE.php
+++ b/wbce/modules/output_filter/languages/DE.php
@@ -40,3 +40,4 @@
 $OPF['JS_MAILTO'] = 'Javascript für Mailto-Filter';
 $OPF['SHORT_URL'] = 'ShortUrl-Filter (kein /pages/, kein .php; htaccess-Anpassung erforderlich!)';
 $OPF['CSS_TO_HEAD'] = 'CSS in den Head transferieren';
+$OPF['REMOVE_SYSTEM_PH'] = 'Vom Core automatisch generierte Kommentare löschen.';
diff --git a/wbce/modules/output_filter/languages/EN.php b/wbce/modules/output_filter/languages/EN.php
index d5e2ed67c..c4cb3f292 100644
--- a/wbce/modules/output_filter/languages/EN.php
+++ b/wbce/modules/output_filter/languages/EN.php
@@ -39,5 +39,6 @@
 $OPF['JS_MAILTO'] = 'Use Javascript on mailto-filter';
 $OPF['SHORT_URL'] = 'Use short url filter (no /pages, no .php - htaccess has to be prepared for that)';
 $OPF['CSS_TO_HEAD'] = 'Move CSS to head';
+$OPF['REMOVE_SYSTEM_PH'] = 'Remove placesholders(PH) generated by core filters.';
 
 
diff --git a/wbce/modules/output_filter/templates/output_filter.tpl.php b/wbce/modules/output_filter/templates/output_filter.tpl.php
index 671cd7efa..d92479939 100644
--- a/wbce/modules/output_filter/templates/output_filter.tpl.php
+++ b/wbce/modules/output_filter/templates/output_filter.tpl.php
@@ -111,6 +111,15 @@
                     name="sys_rel" value="0"><?php echo $OPF['DISABLED'];?>
             </td>
         </tr>
+        <tr>
+            <td width="35%"><?php echo $OPF['REMOVE_SYSTEM_PH'];?>:</td>
+            <td>
+                <input type="radio" <?php echo ($data['remove_system_ph']=='1') ? 'checked="checked"' :'';?>
+                    name="remove_system_ph" value="1"><?php echo $OPF['ENABLED'];?>
+                <input type="radio" <?php echo (($data['remove_system_ph'])=='0') ? 'checked="checked"' :'';?>
+                    name="remove_system_ph" value="0"><?php echo $OPF['DISABLED'];?>
+            </td>
+        </tr>
 
         
         <!-- BACKEND -->
@@ -161,7 +170,17 @@
                     name="css_to_head_be" value="0"><?php echo $OPF['DISABLED'];?>
             </td>
         </tr>
-        
+        <tr>
+            <td width="35%"><?php echo $OPF['REMOVE_SYSTEM_PH'];?>:</td>
+            <td>
+                <input type="radio" <?php echo ($data['remove_system_ph_be']=='1') ? 'checked="checked"' :'';?>
+                    name="remove_system_ph_be" value="1"><?php echo $OPF['ENABLED'];?>
+                <input type="radio" <?php echo (($data['remove_system_ph_be'])=='0') ? 'checked="checked"' :'';?>
+                    name="remove_system_ph_be" value="0"><?php echo $OPF['DISABLED'];?>
+            </td>
+        </tr>
+
+      
         <!-- REPLACEMENTS -->
         
         <tr><td colspan="2"><br /><strong><?php echo $OPF['REPLACEMENT_CONF'];?>:</strong></td></tr>
diff --git a/wbce/modules/output_filter/tool.php b/wbce/modules/output_filter/tool.php
index 99125aa87..519db7588 100644
--- a/wbce/modules/output_filter/tool.php
+++ b/wbce/modules/output_filter/tool.php
@@ -32,14 +32,17 @@
     $data['wblink']           = (int)(intval(isset($_POST['wblink']) ? $_POST['wblink'] : 0) != 0);
     $data['short_url']        = (int)(intval(isset($_POST['short_url']) ? $_POST['short_url'] : 0) != 0);
     $data['sys_rel']          = (int)(intval(isset($_POST['sys_rel']) ? $_POST['sys_rel'] : 0) != 0);
-   
+    $data['remove_system_ph']          = (int)(intval(isset($_POST['remove_system_ph']) ? $_POST['remove_system_ph'] : 0) != 0);
+  
     //backend
     $data['droplets_be']         = (int)(intval(isset($_POST['droplets_be']) ? $_POST['droplets_be'] : 0) != 0);
     $data['auto_placeholder_be'] = (int)(intval(isset($_POST['auto_placeholder_be']) ? $_POST['auto_placeholder_be'] : 0) != 0);
     $data['move_stuff_be']       = (int)(intval(isset($_POST['move_stuff_be']) ? $_POST['move_stuff_be'] : 0) != 0);
     $data['replace_stuff_be']    = (int)(intval(isset($_POST['replace_stuff_be']) ? $_POST['replace_stuff_be'] : 0) != 0);
     $data['css_to_head_be']      = (int)(intval(isset($_POST['css_to_head_be']) ? $_POST['css_to_head_be'] : 0) != 0);
+    $data['remove_system_ph_be']             = (int)(intval(isset($_POST['remove_system_ph_be']) ? $_POST['remove_system_ph_be'] : 0) != 0);
 
+    
     // dont use JAvascript Mailto if no mailto filter active.
     if ($data['js_mailto'] and !$data['mailto_filter']) $data['js_mailto']=0;
 
@@ -71,6 +74,7 @@
         $errmsg.=(string)Settings::Set("opf_wblink", $data['wblink']);
         $errmsg.=(string)Settings::Set("opf_short_url", $data['short_url']);
         $errmsg.=(string)Settings::Set("opf_sys_rel", $data['sys_rel']);     
+        $errmsg.=(string)Settings::Set("opf_remove_system_ph", $data['remove_system_ph']);     
         
         //backend
         $errmsg.=(string)Settings::Set("opf_droplets_be", $data['droplets_be']);
@@ -78,6 +82,7 @@
         $errmsg.=(string)Settings::Set("opf_move_stuff_be", $data['move_stuff_be']);
         $errmsg.=(string)Settings::Set("opf_replace_stuff_be", $data['replace_stuff_be']);
         $errmsg.=(string)Settings::Set("opf_css_to_head_be", $data['css_to_head_be']);      
+        $errmsg.=(string)Settings::Set("opf_remove_system_ph_be", $data['remove_system_ph_be']);     
         
         if($errmsg=="") {
         //anything ok
@@ -114,6 +119,7 @@
     $data['wblink']            = Settings::Get('opf_wblink',1);
     $data['short_url']         = Settings::Get('opf_short_url',0);    
     $data['sys_rel']           = Settings::Get('opf_sys_rel',1);
+    $data['remove_system_ph']           = Settings::Get('opf_remove_system_ph',1);
  
     //backend
     $data['droplets_be']        = Settings::Get('opf_droplets_be',1);
@@ -121,6 +127,7 @@
     $data['move_stuff_be']      = Settings::Get('opf_move_stuff_be',1);
     $data['replace_stuff_be']   = Settings::Get('opf_replace_stuff_be',1);
     $data['css_to_head_be']     = Settings::Get('opf_css_to_head_be',1);
+    $data['remove_system_ph_be']           = Settings::Get('opf_remove_system_ph_be',1);
 
 
 }
diff --git a/wbce/modules/output_filter/uninstall.php b/wbce/modules/output_filter/uninstall.php
index d0ba2bdd2..6db6db9a4 100644
--- a/wbce/modules/output_filter/uninstall.php
+++ b/wbce/modules/output_filter/uninstall.php
@@ -20,26 +20,28 @@
 // Commented out , cause of new OPF dashboard still needs those settings.  
 Settings::Del('wb_suppress_old_opf');
 //frontend
-Settings::Del('opf_droplets',1, false);
-Settings::Del('opf_auto_placeholder',1, false); 
-Settings::Del('opf_move_stuff',1, false);   
-Settings::Del('opf_replace_stuff',1, false);   
-Settings::Del('opf_css_to_head',1, false);
-Settings::Del('opf_email_filter',1, false);
-Settings::Del('opf_mailto_filter',1, false);
-Settings::Del('opf_js_mailto',1, false);
-Settings::Del('opf_at_replacement',"(at)", false);
-Settings::Del('opf_dot_replacement',"(dot)", false);
-Settings::Del('opf_wblink',1, false);
-Settings::Del('opf_short_url',0, false);
-Settings::Del('opf_sys_rel',1, false);
+Settings::Del('opf_droplets');
+Settings::Del('opf_auto_placeholder'); 
+Settings::Del('opf_move_stuff');   
+Settings::Del('opf_replace_stuff');   
+Settings::Del('opf_css_to_head');
+Settings::Del('opf_email_filter');
+Settings::Del('opf_mailto_filter');
+Settings::Del('opf_js_mailto');
+Settings::Del('opf_at_replacement',"(at)");
+Settings::Del('opf_dot_replacement',"(dot)");
+Settings::Del('opf_wblink');
+Settings::Del('opf_short_url');
+Settings::Del('opf_sys_rel');
+Settings::Set("opf_remove_system_ph")    ;
 
 //backend
-Settings::Del('opf_droplets_be',1, false);
-Settings::Del('opf_auto_placeholder_be',1, false); 
-Settings::Del('opf_move_stuff_be',1, false);   
-Settings::Del('opf_replace_stuff_be',1, false); 
-Settings::Del('opf_css_to_head_be',1);
+Settings::Del('opf_droplets_be');
+Settings::Del('opf_auto_placeholder_be'); 
+Settings::Del('opf_move_stuff_be');   
+Settings::Del('opf_replace_stuff_be'); 
+Settings::Del('opf_css_to_head_be');
+Settings::Set("opf_remove_system_ph_be")    ;
 
 // deleting version too 
 Settings::Del("opf_version") ;
diff --git a/wbce/modules/output_filter/upgrade.php b/wbce/modules/output_filter/upgrade.php
index babe12156..389b759f5 100644
--- a/wbce/modules/output_filter/upgrade.php
+++ b/wbce/modules/output_filter/upgrade.php
@@ -70,13 +70,15 @@ function getOutputFilterSettings() {
 Settings::Set('opf_wblink',1, false);
 Settings::Set('opf_short_url',0, false);
 Settings::Set('opf_sys_rel',1, false);
-
+Settings::Set("opf_remove_system_ph", 1, false)  ;      
+   
 //backend
 Settings::Set('opf_droplets_be',1, false);
 Settings::Set('opf_auto_placeholder_be',1, false); 
 Settings::Set('opf_move_stuff_be',1, false);   
 Settings::Set('opf_replace_stuff_be',1, false); 
 Settings::Set('opf_css_to_head_be',1);
+Settings::Set("opf_remove_system_ph_be", 1, false)    ; 
 
 // Override based on old WBCE settings
 if (isset($data["sys_rel"]))       Settings::Set('opf_sys_rel',$data["sys_rel"], false);