diff --git a/crates/engine/src/lib.rs b/crates/engine/src/lib.rs
index b5c639182..a3f7d0bbc 100644
--- a/crates/engine/src/lib.rs
+++ b/crates/engine/src/lib.rs
@@ -4413,6 +4413,13 @@ impl Session {
             }
         }
         note_warnings(&mut info.warnings, &doc.xfa_warnings);
+        // As in `build_document`: the inspection reads only `/Info`, so fields stated only in XMP
+        // are filled in again after every full refresh.
+        for (field, value) in info_fields(&mut info, &editor.cos) {
+            if field.is_none() {
+                *field = value;
+            }
+        }
         doc.info = info;
         doc.fonts_stale = false;
         let mut form = pdfcraft_forms::fields(&editor.cos);
diff --git a/crates/engine/src/tests.rs b/crates/engine/src/tests.rs
index 7a739f256..bc490e2c5 100644
--- a/crates/engine/src/tests.rs
+++ b/crates/engine/src/tests.rs
@@ -555,6 +555,14 @@ fn document_information_stated_only_in_xmp_is_shown() {
     assert_eq!((doc.info.title.as_deref(), doc.info.author.as_deref(), doc.info.subject.as_deref()), (Some("Quarterly report"), Some("Ada"), None));
     assert_eq!(doc.info_value("Title").as_deref(), Some("Quarterly report"));
     assert_eq!(doc.info_value("Author").as_deref(), Some("Ada"));
+
+    // A full refresh (any structural edit, undo, redo) reads /Info again and must not lose them.
+    s.apply(id, Edit::RotatePages { pages: vec![0], degrees: 90 }).unwrap();
+    let doc = s.get(id).unwrap();
+    assert_eq!((doc.info.title.as_deref(), doc.info.author.as_deref()), (Some("Quarterly report"), Some("Ada")), "after an edit");
+    s.undo(id).unwrap();
+    let doc = s.get(id).unwrap();
+    assert_eq!((doc.info.title.as_deref(), doc.info.author.as_deref()), (Some("Quarterly report"), Some("Ada")), "after undo");
 }
 
 #[test]