diff --git a/app/models/metadata_file.rb b/app/models/metadata_file.rb
index 20d093b2..89e6d461 100644
--- a/app/models/metadata_file.rb
+++ b/app/models/metadata_file.rb
@@ -83,6 +83,15 @@ class MetadataFile < MetadataTemplate
       end
   end
 
+  # Obtiene la ruta absoluta al archivo
+  #
+  # @return [Pathname]
+  def pathname
+    raise NoMethodError unless uploaded?
+
+    @pathname ||= Pathname.new(File.join(site.path, value['path']))
+  end
+
   def key_from_path
     path.dirname.basename.to_s
   end