diff --git a/htdocs/core/modules/commande/doc/pdf_einstein.modules.php b/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
index 2f569f1e47fd680d345550e47c5ffab4b43df058..acb2114c351118a2ef176017a886307e54f6282d 100644
--- a/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
+++ b/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
@@ -419,7 +419,7 @@ class pdf_einstein extends ModelePDFCommandes
 					$this->tva[$vatrate] += $tvaligne;
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/commande/doc/pdf_proforma.modules.php b/htdocs/core/modules/commande/doc/pdf_proforma.modules.php
index cf5a562e2ef0d39a20a5defd2355a70a394a17bc..fc880b91a6ef6929c22dca113ca9fa8fd55eb961 100644
--- a/htdocs/core/modules/commande/doc/pdf_proforma.modules.php
+++ b/htdocs/core/modules/commande/doc/pdf_proforma.modules.php
@@ -418,7 +418,7 @@ class pdf_proforma extends ModelePDFCommandes
 					$this->tva[$vatrate] += $tvaligne;
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/expedition/doc/pdf_merou.modules.php b/htdocs/core/modules/expedition/doc/pdf_merou.modules.php
index 8fab26f211c59965b9a1db344f5e34eb52444ee6..e19ef0a2c490f99cbd6c92e8934aedced05862fa 100644
--- a/htdocs/core/modules/expedition/doc/pdf_merou.modules.php
+++ b/htdocs/core/modules/expedition/doc/pdf_merou.modules.php
@@ -265,7 +265,7 @@ class pdf_merou extends ModelePdfExpedition
 					$pdf->MultiCell(30, 3, $object->lines[$i]->qty_shipped, 0, 'C', 0);
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php b/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
index 12fd723bf9b0890bc779bbea22e197f0346e606d..cd8ddaf0a57436354c57abd886127fab655d97ff 100644
--- a/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
+++ b/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
@@ -272,7 +272,7 @@ class pdf_rouget extends ModelePdfExpedition
 					$pdf->MultiCell(($this->page_largeur - $this->marge_droite - $this->posxqtytoship), 3, $object->lines[$i]->qty_shipped,'','C');
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
index e8ea460fb9b8da86b2a0158d9030bdae11429485..eb8e43b6f7cf57d0a03a7aa138e52ce7272d0441 100644
--- a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
+++ b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
@@ -420,7 +420,7 @@ class pdf_crabe extends ModelePDFFactures
 					$this->tva[$vatrate] += $tvaligne;
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/livraison/pdf/pdf_typhon.modules.php b/htdocs/core/modules/livraison/pdf/pdf_typhon.modules.php
index ba58279c8ec21e2207afc93fa0ac85a2e9f3bd42..4e0dbbacae59c9881a297c18060fa15609813dc8 100644
--- a/htdocs/core/modules/livraison/pdf/pdf_typhon.modules.php
+++ b/htdocs/core/modules/livraison/pdf/pdf_typhon.modules.php
@@ -377,7 +377,7 @@ class pdf_typhon extends ModelePDFDeliveryOrder
 					 */
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblines - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblines - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/project/pdf/pdf_baleine.modules.php b/htdocs/core/modules/project/pdf/pdf_baleine.modules.php
index d8f2d744e7827418e1a260cc0738f9d2599ba4ae..90dd563c62065045b2b4578723a6e5beceac0cb3 100644
--- a/htdocs/core/modules/project/pdf/pdf_baleine.modules.php
+++ b/htdocs/core/modules/project/pdf/pdf_baleine.modules.php
@@ -228,7 +228,7 @@ class pdf_baleine extends ModelePDFProjects
 					$nexY = $pdf->GetY();
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/propale/doc/pdf_azur.modules.php b/htdocs/core/modules/propale/doc/pdf_azur.modules.php
index d7d4b3150cff833bb6124ee32c3a5deed1c369da..8f24283448b11993c9c4ea47b3e5f0d12f4d3569 100644
--- a/htdocs/core/modules/propale/doc/pdf_azur.modules.php
+++ b/htdocs/core/modules/propale/doc/pdf_azur.modules.php
@@ -476,7 +476,7 @@ class pdf_azur extends ModelePDFPropales
 					if ($posYAfterImage > $posYAfterDescription) $nexY=$posYAfterImage;
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
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 e45f45cb79bd46e6acb1707434a33e29c9e4ef47..e5e3284e99aa8c6a470d373869f7d26ccfb68186 100644
--- a/htdocs/core/modules/supplier_invoice/pdf/pdf_canelle.modules.php
+++ b/htdocs/core/modules/supplier_invoice/pdf/pdf_canelle.modules.php
@@ -386,7 +386,7 @@ class pdf_canelle extends ModelePDFSuppliersInvoices
 					$this->localtax2[$localtax2rate]+=$localtax2ligne;
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
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 5376d7fcd276d27c31ee38880795d7a59d5582e4..3379ae18b1456fe7878771cd6ff024c69c9b1d7d 100644
--- a/htdocs/core/modules/supplier_order/pdf/pdf_muscadet.modules.php
+++ b/htdocs/core/modules/supplier_order/pdf/pdf_muscadet.modules.php
@@ -410,7 +410,7 @@ class pdf_muscadet extends ModelePDFSuppliersOrders
 
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));