diff --git a/resources/rules.yaml b/resources/rules.yaml
index 9bf73de..992e321 100644
--- a/resources/rules.yaml
+++ b/resources/rules.yaml
@@ -83,11 +83,11 @@ parsers:
   - type: "dockerfile"
     extensions:
       - "Dockerfile"
-      
+
 black_list:
   - .*\.tar|zip|gz
   - .*\.sample.*
-  - .*\.svg|png|jpg|jpeg
+  - .*\.svg|png|jpg|jpeg|pdf
   - .*\.git.*
   - '.*.exe'
   - '.*.amd64'
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