diff --git a/htdocs/core/lib/pdf.lib.php b/htdocs/core/lib/pdf.lib.php
index 45999ee6bcc..2b885974ab6 100644
--- a/htdocs/core/lib/pdf.lib.php
+++ b/htdocs/core/lib/pdf.lib.php
@@ -1,31 +1,31 @@
 <?php
 /* Copyright (C) 2006-2011 Laurent Destailleur  <eldy@users.sourceforge.net>
  * Copyright (C) 2006      Rodolphe Quiedeville <rodolphe@quiedeville.org>
- * Copyright (C) 2007      Patrick Raguin       <patrick.raguin@gmail.com>
- * Copyright (C) 2010-2012 Regis Houssin        <regis.houssin@capnetworks.com>
- * Copyright (C) 2010      Juanjo Menent        <jmenent@2byte.es>
- * Copyright (C) 2012      Christophe Battarel  <christophe.battarel@altairis.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- * or see http://www.gnu.org/
- */
+* Copyright (C) 2007      Patrick Raguin       <patrick.raguin@gmail.com>
+* Copyright (C) 2010-2012 Regis Houssin        <regis.houssin@capnetworks.com>
+* Copyright (C) 2010      Juanjo Menent        <jmenent@2byte.es>
+* Copyright (C) 2012      Christophe Battarel  <christophe.battarel@altairis.fr>
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation; either version 3 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program. If not, see <http://www.gnu.org/licenses/>.
+* or see http://www.gnu.org/
+*/
 
 /**
  *	\file       htdocs/core/lib/pdf.lib.php
- *	\brief      Set of functions used for PDF generation
- *	\ingroup    core
- */
+*	\brief      Set of functions used for PDF generation
+*	\ingroup    core
+*/
 
 
 /**
@@ -1150,8 +1150,7 @@ function pdf_getlinevatrate($object,$i,$outputlangs,$hidedetails=0)
 		if (! empty($object->lines[$i]->fk_parent_line)) $special_code = $object->getSpecialCode($object->lines[$i]->fk_parent_line);
 		$parameters = array('i'=>$i,'outputlangs'=>$outputlangs,'hidedetails'=>$hidedetails,'special_code'=>$special_code);
 		$action='';
-		$reshook=$hookmanager->executeHooks('pdf_getlinevatrate',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
-		return $hookmanager->resPrint;
+		return $hookmanager->executeHooks('pdf_getlinevatrate',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
 	}
 	else
 	{
@@ -1181,8 +1180,7 @@ function pdf_getlineupexcltax($object,$i,$outputlangs,$hidedetails=0)
 		if (! empty($object->lines[$i]->fk_parent_line)) $special_code = $object->getSpecialCode($object->lines[$i]->fk_parent_line);
 		$parameters = array('i'=>$i,'outputlangs'=>$outputlangs,'hidedetails'=>$hidedetails,'special_code'=>$special_code);
 		$action='';
-		$reshook=$hookmanager->executeHooks('pdf_getlineupexcltax',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
-		return $hookmanager->resPrint;
+		return $hookmanager->executeHooks('pdf_getlineupexcltax',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
 	}
 	else
 	{
@@ -1207,10 +1205,10 @@ function pdf_getlineupwithtax($object,$i,$outputlangs,$hidedetails=0)
 	{
 		$special_code = $object->lines[$i]->special_code;
 		if (! empty($object->lines[$i]->fk_parent_line)) $special_code = $object->getSpecialCode($object->lines[$i]->fk_parent_line);
-		$parameters = array('i'=>$i,'outputlangs'=>$outputlangs,'hidedetails'=>$hidedetails,'special_code'=>$special_code);
-		$action='';
-		$reshook=$hookmanager->executeHooks('pdf_getlineupwithtax',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
-		return $hookmanager->resPrint;
+		foreach($object->hooks as $modules)
+		{
+			if (method_exists($modules[$special_code],'pdf_getlineupwithtax')) return $modules[$special_code]->pdf_getlineupwithtax($object,$i,$outputlangs,$hidedetails);
+		}
 	}
 	else
 	{
@@ -1239,8 +1237,7 @@ function pdf_getlineqty($object,$i,$outputlangs,$hidedetails=0)
 			if (! empty($object->lines[$i]->fk_parent_line)) $special_code = $object->getSpecialCode($object->lines[$i]->fk_parent_line);
 			$parameters = array('i'=>$i,'outputlangs'=>$outputlangs,'hidedetails'=>$hidedetails,'special_code'=>$special_code);
 			$action='';
-			$reshook=$hookmanager->executeHooks('pdf_getlineqty',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
-			return $hookmanager->resPrint;
+			return $hookmanager->executeHooks('pdf_getlineqty',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
 		}
 		else
 		{
@@ -1270,8 +1267,7 @@ function pdf_getlineqty_asked($object,$i,$outputlangs,$hidedetails=0)
 			if (! empty($object->lines[$i]->fk_parent_line)) $special_code = $object->getSpecialCode($object->lines[$i]->fk_parent_line);
 			$parameters = array('i'=>$i,'outputlangs'=>$outputlangs,'hidedetails'=>$hidedetails,'special_code'=>$special_code);
 			$action='';
-			$reshook=$hookmanager->executeHooks('pdf_getlineqty_asked',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
-			return $hookmanager->resPrint;
+			return $hookmanager->executeHooks('pdf_getlineqty_asked',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
 		}
 		else
 		{
@@ -1301,8 +1297,7 @@ function pdf_getlineqty_shipped($object,$i,$outputlangs,$hidedetails=0)
 			if (! empty($object->lines[$i]->fk_parent_line)) $special_code = $object->getSpecialCode($object->lines[$i]->fk_parent_line);
 			$parameters = array('i'=>$i,'outputlangs'=>$outputlangs,'hidedetails'=>$hidedetails,'special_code'=>$special_code);
 			$action='';
-			$reshook=$hookmanager->executeHooks('pdf_getlineqty_shipped',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
-			return $hookmanager->resPrint;
+			return $hookmanager->executeHooks('pdf_getlineqty_shipped',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
 		}
 		else
 		{
@@ -1332,8 +1327,7 @@ function pdf_getlineqty_keeptoship($object,$i,$outputlangs,$hidedetails=0)
 			if (! empty($object->lines[$i]->fk_parent_line)) $special_code = $object->getSpecialCode($object->lines[$i]->fk_parent_line);
 			$parameters = array('i'=>$i,'outputlangs'=>$outputlangs,'hidedetails'=>$hidedetails,'special_code'=>$special_code);
 			$action='';
-			$reshook=$hookmanager->executeHooks('pdf_getlineqty_keeptoship',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
-			return $hookmanager->resPrint;
+			return $hookmanager->executeHooks('pdf_getlineqty_keeptoship',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
 		}
 		else
 		{
@@ -1365,8 +1359,7 @@ function pdf_getlineremisepercent($object,$i,$outputlangs,$hidedetails=0)
 			if (! empty($object->lines[$i]->fk_parent_line)) $special_code = $object->getSpecialCode($object->lines[$i]->fk_parent_line);
 			$parameters = array('i'=>$i,'outputlangs'=>$outputlangs,'hidedetails'=>$hidedetails,'special_code'=>$special_code);
 			$action='';
-			$reshook=$hookmanager->executeHooks('pdf_getlineremisepercent',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
-			return $hookmanager->resPrint;
+			return $hookmanager->executeHooks('pdf_getlineremisepercent',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
 		}
 		else
 		{
@@ -1403,8 +1396,7 @@ function pdf_getlinetotalexcltax($object,$i,$outputlangs,$hidedetails=0)
 			if (! empty($object->lines[$i]->fk_parent_line)) $special_code = $object->getSpecialCode($object->lines[$i]->fk_parent_line);
 			$parameters = array('i'=>$i,'outputlangs'=>$outputlangs,'hidedetails'=>$hidedetails,'special_code'=>$special_code);
 			$action='';
-			$reshook=$hookmanager->executeHooks('pdf_getlinetotalexcltax',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
-			return $hookmanager->resPrint;
+			return $hookmanager->executeHooks('pdf_getlinetotalexcltax',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
 		}
 		else
 		{
@@ -1439,8 +1431,7 @@ function pdf_getlinetotalwithtax($object,$i,$outputlangs,$hidedetails=0)
 			if (! empty($object->lines[$i]->fk_parent_line)) $special_code = $object->getSpecialCode($object->lines[$i]->fk_parent_line);
 			$parameters = array('i'=>$i,'outputlangs'=>$outputlangs,'hidedetails'=>$hidedetails,'special_code'=>$special_code);
 			$action='';
-			$reshook=$hookmanager->executeHooks('pdf_getlinetotalwithtax',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
-			return $hookmanager->resPrint;
+			return $hookmanager->executeHooks('pdf_getlinetotalwithtax',$parameters,$object,$action);    // Note that $action and $object may have been modified by some hooks
 		}
 		else
 		{