diff --git a/src/app/signatureBook/controllers/SignatureBookController.php b/src/app/signatureBook/controllers/SignatureBookController.php
index 247c1b31e18f02faa917ac2a22b69b7a01f70107..e4003d8658242c7519647d5d9bae55f258dcce98 100755
--- a/src/app/signatureBook/controllers/SignatureBookController.php
+++ b/src/app/signatureBook/controllers/SignatureBookController.php
@@ -429,7 +429,7 @@ class SignatureBookController
         $height = (int)$loadedXml->CONFIG->height_blocsign ?? 100;
         $tmpPath = CoreConfigModel::getTmpPath();
 
-        $command = "java -jar modules/visa/dist/SignPdf.jar {$pathToDocument} {$signaturePath} {$width} {$height} {$tmpPath}";
+        $command = "java -jar modules/visa/dist/SignPdf.jar {$pathToDocument} {$signaturePath} {$width} {$height} {$tmpPath} 2> /dev/null";
         exec($command, $output, $return);
 
         $signedDocument = @file_get_contents($tmpPath.$convertedDocument['filename']);
@@ -568,7 +568,7 @@ class SignatureBookController
         $height = (int)$loadedXml->CONFIG->height_blocsign ?? 100;
         $tmpPath = CoreConfigModel::getTmpPath();
 
-        $command = "java -jar modules/visa/dist/SignPdf.jar {$pathToDocument} {$signaturePath} {$width} {$height} {$tmpPath}";
+        $command = "java -jar modules/visa/dist/SignPdf.jar {$pathToDocument} {$signaturePath} {$width} {$height} {$tmpPath} 2> /dev/null";
         exec($command, $output, $return);
 
         $signedDocument = @file_get_contents($tmpPath.$convertedDocument['filename']);