diff --git a/htdocs/core/modules/commande/doc/pdf_einstein.modules.php b/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
index 7c002f969aa..c565f55c934 100644
--- a/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
+++ b/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
@@ -182,21 +182,16 @@ class pdf_einstein extends ModelePDFCommandes
      *  @param		int			$hideref			Do not show ref
      *  @return     int             			    1=OK, 0=KO
 	 */
-	function write_file($object,$outputlangs,$srctemplatepath='',$hidedetails=0,$hidedesc=0,$hideref=0)
+	function write_file($object, $outputlangs, $srctemplatepath='', $hidedetails=0, $hidedesc=0, $hideref=0)
 	{
-		global $user,$langs,$conf,$mysoc,$db,$hookmanager,$nblignes;
+		global $user, $langs, $conf, $mysoc, $db, $hookmanager, $nblignes;
 
 		if (! is_object($outputlangs)) $outputlangs=$langs;
 		// For backward compatibility with FPDF, force output charset to ISO, because FPDF expect text to be encoded in ISO
 		if (! empty($conf->global->MAIN_USE_FPDF)) $outputlangs->charset_output='ISO-8859-1';
-
-		$outputlangs->load("main");
-		$outputlangs->load("dict");
-		$outputlangs->load("companies");
-		$outputlangs->load("bills");
-		$outputlangs->load("products");
-		$outputlangs->load("orders");
-		$outputlangs->load("deliveries");
+		
+		// Translations
+		$outputlangs->loadLangs(array("main", "dict", "companies", "bills", "products", "orders", "deliveries"));
 
 		$nblignes = count($object->lines);
 
diff --git a/htdocs/core/modules/expensereport/doc/pdf_standard.modules.php b/htdocs/core/modules/expensereport/doc/pdf_standard.modules.php
index baf43ecd538..75db209b6d3 100644
--- a/htdocs/core/modules/expensereport/doc/pdf_standard.modules.php
+++ b/htdocs/core/modules/expensereport/doc/pdf_standard.modules.php
@@ -64,11 +64,10 @@ class pdf_standard extends ModeleExpenseReport
 	 */
 	function __construct($db)
 	{
-		global $conf,$langs,$mysoc;
-
-		$langs->load("main");
-		$langs->load("trips");
-		$langs->load("projects");
+		global $conf, $langs, $mysoc;
+		
+		// Translations
+		$langs->loadLangs(array("main", "trips", "projects"));
 
 		$this->db = $db;
 		$this->name = "";
diff --git a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
index 25bee86088c..e537331625e 100644
--- a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
+++ b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
@@ -80,9 +80,9 @@ class pdf_crabe extends ModelePDFFactures
 	function __construct($db)
 	{
 		global $conf,$langs,$mysoc;
-
-		$langs->load("main");
-		$langs->load("bills");
+		
+		// Translations
+		$langs->loadLangs(array("main", "bills"));
 
 		$this->db = $db;
 		$this->name = "crabe";
diff --git a/htdocs/core/modules/livraison/doc/pdf_typhon.modules.php b/htdocs/core/modules/livraison/doc/pdf_typhon.modules.php
index e3f5471a6c3..6c37a706064 100644
--- a/htdocs/core/modules/livraison/doc/pdf_typhon.modules.php
+++ b/htdocs/core/modules/livraison/doc/pdf_typhon.modules.php
@@ -137,14 +137,9 @@ class pdf_typhon extends ModelePDFDeliveryOrder
 		if (! is_object($outputlangs)) $outputlangs=$langs;
 		// For backward compatibility with FPDF, force output charset to ISO, because FPDF expect text to be encoded in ISO
 		if (! empty($conf->global->MAIN_USE_FPDF)) $outputlangs->charset_output='ISO-8859-1';
-
-		$outputlangs->load("main");
-		$outputlangs->load("dict");
-		$outputlangs->load("companies");
-		$outputlangs->load("bills");
-		$outputlangs->load("products");
-		$outputlangs->load("deliveries");
-		$outputlangs->load("sendings");
+		
+		// Translations
+		$outputlangs->loadLangs(array("main", "dict", "companies", "bills", "products", "sendings", "deliveries"));
 
 		if ($conf->expedition->dir_output)
 		{