diff --git a/htdocs/core/modules/commande/doc/pdf_einstein.modules.php b/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
index f2f78efbaa2..43bbcdd5959 100644
--- a/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
+++ b/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
@@ -290,9 +290,12 @@ class pdf_einstein extends ModelePDFCommandes
 				}
 				$pdf->SetFont(pdf_getPDFFont($outputlangs));
 				// Set path to the background PDF File
-				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND))
-				{
-					$pagecount = $pdf->setSourceFile($conf->mycompany->multidir_output[$object->entity].'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
+				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND)) {
+                    $logodir = $conf->mycompany->dir_output;
+                    if (!empty($conf->mycompany->multidir_output[$object->entity])) {
+                        $logodir = $conf->mycompany->multidir_output[$object->entity];
+                    }
+					$pagecount = $pdf->setSourceFile($logodir.'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
 					$tplidx = $pdf->importPage(1);
 				}
 
diff --git a/htdocs/core/modules/commande/doc/pdf_eratosthene.modules.php b/htdocs/core/modules/commande/doc/pdf_eratosthene.modules.php
index 6037714f6db..16f29f95dcb 100644
--- a/htdocs/core/modules/commande/doc/pdf_eratosthene.modules.php
+++ b/htdocs/core/modules/commande/doc/pdf_eratosthene.modules.php
@@ -338,9 +338,12 @@ class pdf_eratosthene extends ModelePDFCommandes
 				}
 				$pdf->SetFont(pdf_getPDFFont($outputlangs));
 				// Set path to the background PDF File
-				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND))
-				{
-					$pagecount = $pdf->setSourceFile($conf->mycompany->multidir_output[$object->entity].'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
+				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND)) {
+                    $logodir = $conf->mycompany->dir_output;
+                    if (!empty($conf->mycompany->multidir_output[$object->entity])) {
+                        $logodir = $conf->mycompany->multidir_output[$object->entity];
+                    }
+					$pagecount = $pdf->setSourceFile($logodir.'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
 					$tplidx = $pdf->importPage(1);
 				}
 
diff --git a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
index 9e336863467..f92deff0c88 100644
--- a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
+++ b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
@@ -335,9 +335,12 @@ class pdf_crabe extends ModelePDFFactures
 				$pdf->SetFont(pdf_getPDFFont($outputlangs));
 
 				// Set path to the background PDF File
-				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND))
-				{
-					$pagecount = $pdf->setSourceFile($conf->mycompany->multidir_output[$object->entity].'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
+				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND)) {
+					$logodir = $conf->mycompany->dir_output;
+					if (!empty($conf->mycompany->multidir_output[$object->entity])) {
+						$logodir = $conf->mycompany->multidir_output[$object->entity];
+					}
+					$pagecount = $pdf->setSourceFile($logodir.'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
 					$tplidx = $pdf->importPage(1);
 				}
 
diff --git a/htdocs/core/modules/facture/doc/pdf_sponge.modules.php b/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
index cf6ec0e4711..b42858ca4c9 100644
--- a/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
+++ b/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
@@ -355,9 +355,12 @@ class pdf_sponge extends ModelePDFFactures
 				$pdf->SetFont(pdf_getPDFFont($outputlangs));
 
 				// Set path to the background PDF File
-				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND))
-				{
-					$pagecount = $pdf->setSourceFile($conf->mycompany->multidir_output[$object->entity].'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
+				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND)) {
+                    $logodir = $conf->mycompany->dir_output;
+                    if (!empty($conf->mycompany->multidir_output[$object->entity])) {
+						$logodir = $conf->mycompany->multidir_output[$object->entity];
+					}
+					$pagecount = $pdf->setSourceFile($logodir.'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
 					$tplidx = $pdf->importPage(1);
 				}
 
diff --git a/htdocs/core/modules/propale/doc/pdf_azur.modules.php b/htdocs/core/modules/propale/doc/pdf_azur.modules.php
index 856828edc00..e138fb43305 100644
--- a/htdocs/core/modules/propale/doc/pdf_azur.modules.php
+++ b/htdocs/core/modules/propale/doc/pdf_azur.modules.php
@@ -335,9 +335,12 @@ class pdf_azur extends ModelePDFPropales
 				}
 				$pdf->SetFont(pdf_getPDFFont($outputlangs));
 				// Set path to the background PDF File
-				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND))
-				{
-					$pagecount = $pdf->setSourceFile($conf->mycompany->multidir_output[$object->entity].'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
+				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND)) {
+                    $logodir = $conf->mycompany->dir_output;
+                    if (!empty($conf->mycompany->multidir_output[$object->entity])) {
+                        $logodir = $conf->mycompany->multidir_output[$object->entity];
+                    }
+					$pagecount = $pdf->setSourceFile($logodir.'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
 					$tplidx = $pdf->importPage(1);
 				}
 
diff --git a/htdocs/core/modules/propale/doc/pdf_cyan.modules.php b/htdocs/core/modules/propale/doc/pdf_cyan.modules.php
index c82fb592d82..7c9f4e6fe77 100644
--- a/htdocs/core/modules/propale/doc/pdf_cyan.modules.php
+++ b/htdocs/core/modules/propale/doc/pdf_cyan.modules.php
@@ -339,9 +339,12 @@ class pdf_cyan extends ModelePDFPropales
 				}
 				$pdf->SetFont(pdf_getPDFFont($outputlangs));
 				// Set path to the background PDF File
-				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND))
-				{
-					$pagecount = $pdf->setSourceFile($conf->mycompany->multidir_output[$object->entity].'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
+				if (!empty($conf->global->MAIN_ADD_PDF_BACKGROUND)) {
+                    $logodir = $conf->mycompany->dir_output;
+                    if (!empty($conf->mycompany->multidir_output[$object->entity])) {
+                        $logodir = $conf->mycompany->multidir_output[$object->entity];
+                    }
+					$pagecount = $pdf->setSourceFile($logodir.'/'.$conf->global->MAIN_ADD_PDF_BACKGROUND);
 					$tplidx = $pdf->importPage(1);
 				}