diff --git a/RAAspotter.py b/RAAspotter.py
index 4a75a3aa7ad5f68f7ccc58cf2b03d4a2fd2b3ed5..98d30928e45b78179397e8925a58c79878737180 100644
--- a/RAAspotter.py
+++ b/RAAspotter.py
@@ -426,6 +426,7 @@ class RAAspotter:
             '--redo-ocr',
             '--skip-big', '500',
             '--invalidate-digital-signatures',
+            '--optimize', '0',
             f'{self.data_dir}/raa/{raa.get_sha256()}.pdf',
             f'{self.data_dir}/raa/{raa.get_sha256()}.ocr.pdf'
         ]