diff --git a/htdocs/core/modules/supplier_invoice/pdf/pdf_canelle.modules.php b/htdocs/core/modules/supplier_invoice/pdf/pdf_canelle.modules.php
index 0a57ab1e449..29d8d7a2f81 100644
--- a/htdocs/core/modules/supplier_invoice/pdf/pdf_canelle.modules.php
+++ b/htdocs/core/modules/supplier_invoice/pdf/pdf_canelle.modules.php
@@ -1086,7 +1086,16 @@ class pdf_canelle extends ModelePDFSuppliersInvoices
 		if ($showaddress)
 		{
 			// Sender properties
-			$carac_emetteur = pdf_build_address($outputlangs, $this->emetteur, $object->thirdparty);
+		    $carac_emetteur='';
+		    // Add internal contact of proposal if defined
+		    $arrayidcontact=$object->getIdContact('internal','SALESREPFOLL');
+		    if (count($arrayidcontact) > 0)
+		    {
+		        $object->fetch_user($arrayidcontact[0]);
+		        $carac_emetteur .= ($carac_emetteur ? "\n" : '' ).$outputlangs->convToOutputCharset($object->user->getFullName($outputlangs))."\n";
+		    }
+		    
+		    $carac_emetteur .= pdf_build_address($outputlangs, $this->emetteur, $object->thirdparty);
 
 			// Show sender
 			$posy=42;
diff --git a/htdocs/core/modules/supplier_order/pdf/pdf_muscadet.modules.php b/htdocs/core/modules/supplier_order/pdf/pdf_muscadet.modules.php
index d272957d80d..878574b2eff 100644
--- a/htdocs/core/modules/supplier_order/pdf/pdf_muscadet.modules.php
+++ b/htdocs/core/modules/supplier_order/pdf/pdf_muscadet.modules.php
@@ -1210,8 +1210,17 @@ class pdf_muscadet extends ModelePDFSuppliersOrders
 
 		if ($showaddress)
 		{
-			// Sender properties
-			$carac_emetteur = pdf_build_address($outputlangs, $this->emetteur, $object->thirdparty);
+		    // Sender properties
+		    $carac_emetteur='';
+		    // Add internal contact of proposal if defined
+		    $arrayidcontact=$object->getIdContact('internal','SALESREPFOLL');
+		    if (count($arrayidcontact) > 0)
+		    {
+		        $object->fetch_user($arrayidcontact[0]);
+		        $carac_emetteur .= ($carac_emetteur ? "\n" : '' ).$outputlangs->convToOutputCharset($object->user->getFullName($outputlangs))."\n";
+		    }
+		    
+			$carac_emetteur .= pdf_build_address($outputlangs, $this->emetteur, $object->thirdparty);
 
 			// Show sender
 			$posy=42;