diff --git a/crates/xfdf/src/lib.rs b/crates/xfdf/src/lib.rs
--- a/crates/xfdf/src/lib.rs
+++ b/crates/xfdf/src/lib.rs
@@ -112,7 +112,9 @@ pub fn export_data(doc: &Document, format: Format) -> String {
             out
         }
         Format::Csv => {
-            let q = |s: &str| if s.contains([',', '"', '\n', '\r', '\t']) { format!("\"{}\"", s.replace('"', "\"\"")) } else { s.to_string() };
+            let q = |s: &str| {
+                if s.is_empty() || s.contains([',', '"', '\n', '\r', '\t']) { format!("\"{}\"", s.replace('"', "\"\"")) } else { s.to_string() }
+            };
             format!(
                 "{}\n{}\n",
                 fields.iter().map(|f| q(&f.0)).collect::<Vec<_>>().join(","),
diff --git a/crates/xfdf/src/tests.rs b/crates/xfdf/src/tests.rs
--- a/crates/xfdf/src/tests.rs
+++ b/crates/xfdf/src/tests.rs
@@ -655,6 +655,18 @@ fn quoted_empty_csv_value_clears_a_field() {
     }
 }
 
+#[test]
+fn empty_value_of_a_one_field_form_round_trips_through_csv() {
+    let mut src = one_field();
+    set_value(&mut src, "Name", &FieldValue::Text(String::new())).unwrap();
+    let csv = export_data(&src, Format::Csv);
+    let mut dst = one_field();
+    set_value(&mut dst, "Name", &FieldValue::Text("Ada".into())).unwrap();
+    let report = import(&mut dst, csv.as_bytes()).unwrap_or_else(|e| panic!("{csv:?} -> {e:?}"));
+    assert_eq!(report.fields, 1, "{csv:?}");
+    assert!(values(&dst)[0].1.is_empty(), "{csv:?}");
+}
+
 #[test]
 fn multi_select_lists_round_trip_through_xml_csv_and_text() {
     let src = filled();