diff --git a/brozzler/job_schema.yaml b/brozzler/job_schema.yaml
index 6069de8..3474b83 100644
--- a/brozzler/job_schema.yaml
+++ b/brozzler/job_schema.yaml
@@ -100,3 +100,5 @@ seeds:
 max_claimed_sites:
   type: integer
 
+pdfs_only:
+  type: boolean