diff --git a/optipdf b/optipdf
index 8320ddb..502a091 100755
--- a/optipdf
+++ b/optipdf
@@ -228,6 +228,7 @@ TEMP_FILES+=("$TEMP")
 QPDF_ARGS=(
     --compression-level=9
     --deterministic-id
+    --flatten-rotation
     --object-streams=generate
     --recompress-flate
     --stream-data=compress