diff --git a/cis/private/lehre/abgabe_lektor_details.php b/cis/private/lehre/abgabe_lektor_details.php
index a40136868..142af5527 100644
--- a/cis/private/lehre/abgabe_lektor_details.php
+++ b/cis/private/lehre/abgabe_lektor_details.php
@@ -701,20 +701,23 @@ while ($row=@$db->db_fetch_object($result))
 		$signaturVorhanden = false;
 		if ($row->paabgabetyp_kurzbz == 'end')
 		{
-			// Check if the document is signed
-			$signList = SignatureLib::list(PAABGABE_PATH.$row->paabgabe_id.'_'.$uid.'.pdf');
-			if (is_array($signList) && count($signList) > 0)
+			if(defined('ABGABETOOL_CHECK_SIGNATURE') && ABGABETOOL_CHECK_SIGNATURE)
 			{
-				$signaturVorhanden = true;
-				// The document is signed
-			}
-			elseif ($signList === null)
-			{
-				$uploadedDocumentSigned = 'WARNING: signature server error';
-			}
-			else
-			{
-				$uploadedDocumentSigned = $p->t('abgabetool/uploadedDocumentNotSigned');
+				// Check if the document is signed
+				$signList = SignatureLib::list(PAABGABE_PATH.$row->paabgabe_id.'_'.$uid.'.pdf');
+				if (is_array($signList) && count($signList) > 0)
+				{
+					$signaturVorhanden = true;
+					// The document is signed
+				}
+				elseif ($signList === null)
+				{
+					$uploadedDocumentSigned = 'WARNING: signature server error';
+				}
+				else
+				{
+					$uploadedDocumentSigned = $p->t('abgabetool/uploadedDocumentNotSigned');
+				}
 			}
 		}
 		if ($uploadedDocumentSigned != null)
diff --git a/cis/private/lehre/abgabe_student_details.php b/cis/private/lehre/abgabe_student_details.php
index 9e2dcc901..6575dcf70 100644
--- a/cis/private/lehre/abgabe_student_details.php
+++ b/cis/private/lehre/abgabe_student_details.php
@@ -346,20 +346,23 @@ if($command=="update" && $error!=true)
 
 					if (file_exists(PAABGABE_PATH.$paabgabe_id.'_'.$uid.'.pdf'))
 					{
-						// Check if the document is signed
-						$signList = SignatureLib::list(PAABGABE_PATH.$paabgabe_id.'_'.$uid.'.pdf');
-						if (is_array($signList) && count($signList) > 0)
-						{$htmlstr .= '<input type="hidden" name="command" value="add">'."\n";
-							// The document is signed
-						}
-						elseif ($signList === null)
+						if(defined('ABGABETOOL_CHECK_SIGNATURE') && ABGABETOOL_CHECK_SIGNATURE)
 						{
-							$uploadedDocumentSigned = 'WARNING: signature server error';
-						}
-						else
-						{
-							$signaturVorhanden = false;
-							$uploadedDocumentSigned = $p->t('abgabetool/uploadedDocumentNotSignedStudent');
+							// Check if the document is signed
+							$signList = SignatureLib::list(PAABGABE_PATH.$paabgabe_id.'_'.$uid.'.pdf');
+							if (is_array($signList) && count($signList) > 0)
+							{
+								// The document is signed
+							}
+							elseif ($signList === null)
+							{
+								$uploadedDocumentSigned = 'WARNING: signature server error';
+							}
+							else
+							{
+								$signaturVorhanden = false;
+								$uploadedDocumentSigned = $p->t('abgabetool/uploadedDocumentNotSignedStudent');
+							}
 						}
 
 						/*$qry="UPDATE campus.tbl_paabgabe SET
diff --git a/config/cis.config-default.inc.php b/config/cis.config-default.inc.php
index 91f998ee9..1a72888be 100644
--- a/config/cis.config-default.inc.php
+++ b/config/cis.config-default.inc.php
@@ -224,6 +224,9 @@ define('SIGNATUR_PASSWORD', 'supersecretpassword');
 // Signaturprofil das verwendet werden soll
 define('SIGNATUR_DEFAULT_PROFILE', 'FHC_AMT_GROSS_DE');
 
+// Signaturpruefung im Abgabetool aktivieren
+define('ABGABETOOL_CHECK_SIGNATURE',false);
+
 //Gibt an, ob das Studienbuchblatt im CIS gedruckt werden kann
 define('CIS_DOKUMENTE_STUDIENBUCHLBATT_DRUCKEN',true);
 
diff --git a/config/vilesci.config-default.inc.php b/config/vilesci.config-default.inc.php
index f738e6fef..cbb3c1136 100644
--- a/config/vilesci.config-default.inc.php
+++ b/config/vilesci.config-default.inc.php
@@ -201,6 +201,9 @@ define('SIGNATUR_PASSWORD', 'supersecretpassword');
 // Signaturprofil das verwendet werden soll
 define('SIGNATUR_DEFAULT_PROFILE', 'FHC_AMT_GROSS_DE');
 
+// Signaturpruefung im Abgabetool aktivieren
+define('ABGABETOOL_CHECK_SIGNATURE',false);
+
 /**
  * Datenverbund Anbindung
  */