diff --git a/src/export/pdf/pdftk.php b/src/export/pdf/pdftk.php
index 5b9e92a..6d17060 100644
--- a/src/export/pdf/pdftk.php
+++ b/src/export/pdf/pdftk.php
@@ -8,8 +8,9 @@
 	*@package fpdftk
 	*@date    2010-12-06                                                         
 	*@author  0livier    
-	*@version 2.0
+	*@version 2.1
 	*@note 
+	*	V2.1 (12/15/2021) Get temp directory dynamically using "sys_get_temp_dir()"
 	*	V2.0 '06.12.2010) Add security support , first public release.
 	* 	V1.0 (05.12.2010) First working release
 	******************************************************************/
@@ -83,7 +84,7 @@ function pdftk($pdf_file,$fdf_file,$settings) {
 		$output_modes=$settings['output_modes'];
 		$security=$settings['security'];
 		
-		$cwd = '/tmp';
+		$cwd = sys_get_temp_dir();
 		$env = array('misc_options' => 'aeiou');
 		$err='';
 		$success=0;
@@ -145,4 +146,4 @@ function pdftk($pdf_file,$fdf_file,$settings) {
 		return $ret;
 	}
 
-?>
\ No newline at end of file
+?>