Make validation use exact same PDF generation as export

core/class/declarationtva_pdf.class.php

@@ -340,8 +340,20 @@ class DeclarationTVA_PDF
         
         $filepath = $month_dir . $filename;
 
-        // Use the same method as export
-        return $this->generateCompleteCA3PDF($declaration_id, $filepath, 'validation', $outputlangs);
+        // Use the exact same method as export but with the correct output path
+        // First generate the PDF using the same method as export
+        $temp_pdf = $this->generateCA3PDF($declaration_id, $outputlangs);
+        
+        if ($temp_pdf && file_exists($temp_pdf)) {
+            // Copy the generated PDF to the validation location
+            if (copy($temp_pdf, $filepath)) {
+                // Clean up the temporary file
+                unlink($temp_pdf);
+                return $filepath;
+            }
+        }
+        
+        return false;
     }
 
     /**