diff --git a/src/main/java/org/verapdf/pd/PDAnnotation.java b/src/main/java/org/verapdf/pd/PDAnnotation.java
index 82a19a2f..c372715d 100644
--- a/src/main/java/org/verapdf/pd/PDAnnotation.java
+++ b/src/main/java/org/verapdf/pd/PDAnnotation.java
@@ -323,4 +323,9 @@ public static COSObject getPageFromDestination(COSObject destination,  ASAtom ke
         }
         return obj;
     }
+
+    public static boolean isVisibleAnnotation(PDAnnotation annotation) {
+        Long f = annotation.getIntegerKey(ASAtom.F);
+        return (f == null || (f & 2) != 2);
+    }
 }