diff --git a/packages/attachment_engine/attachment_engine/CHANGELOG.md b/packages/attachment_engine/attachment_engine/CHANGELOG.md
index 3480ca3..5b4baf0 100644
--- a/packages/attachment_engine/attachment_engine/CHANGELOG.md
+++ b/packages/attachment_engine/attachment_engine/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 0.0.1-dev.4
+
+* `TextAttachmentRenderer.showSearch` now defaults to `false` (was `true`).
+  The in-file search bar remains available by opting in explicitly; the
+  plain scrollable text view is now the out-of-the-box behavior.
+
 ## 0.0.1-dev.3
 
 * New `OfficeAttachmentRenderer.onDismissed` callback, invoked once the
diff --git a/packages/attachment_engine/attachment_engine/lib/src/renderers/text_renderer.dart b/packages/attachment_engine/attachment_engine/lib/src/renderers/text_renderer.dart
index 7b14cd9..88fd09c 100644
--- a/packages/attachment_engine/attachment_engine/lib/src/renderers/text_renderer.dart
+++ b/packages/attachment_engine/attachment_engine/lib/src/renderers/text_renderer.dart
@@ -14,15 +14,15 @@ import 'renderer.dart';
 /// Plain text viewer. Set [snippetMode] to true (via [TextAttachmentRenderer.preview])
 /// for a short, non-scrolling preview rather than the full document.
 ///
-/// Full (non-snippet) mode includes a search bar (case-insensitive, with
-/// match count and next/previous navigation that scrolls to and highlights
-/// each match) — set [showSearch] to false to opt out and get the plain
-/// scrollable text view instead.
+/// Full (non-snippet) mode can optionally show a search bar (case-insensitive,
+/// with match count and next/previous navigation that scrolls to and
+/// highlights each match) — set [showSearch] to true to opt in; it defaults
+/// to off, giving the plain scrollable text view.
 class TextAttachmentRenderer extends AttachmentRenderer {
   const TextAttachmentRenderer({
     this.snippetMode = false,
     this.snippetLength = 280,
-    this.showSearch = true,
+    this.showSearch = false,
   });
 
   final bool snippetMode;
@@ -30,7 +30,7 @@ class TextAttachmentRenderer extends AttachmentRenderer {
 
   /// Whether the full (non-snippet) view shows an in-file search bar.
   /// Ignored when [snippetMode] is true (a 3-line preview has nothing
-  /// meaningful to search).
+  /// meaningful to search). Off by default.
   final bool showSearch;
 
   @override
diff --git a/packages/attachment_engine/attachment_engine/pubspec.yaml b/packages/attachment_engine/attachment_engine/pubspec.yaml
index 34758f9..6d42b73 100644
--- a/packages/attachment_engine/attachment_engine/pubspec.yaml
+++ b/packages/attachment_engine/attachment_engine/pubspec.yaml
@@ -1,6 +1,6 @@
 name: attachment_engine
 description: "Universal attachment engine for Flutter to resolve, cache, download, preview, and render documents, media, and web content using native platform APIs."
-version: 0.0.1-dev.3
+version: 0.0.1-dev.4
 homepage: "https://github.com/dhc-tech/flutter-packages/tree/main/packages/attachment_engine/attachment_engine"
 repository: "https://github.com/dhc-tech/flutter-packages"
 issue_tracker: "https://github.com/dhc-tech/flutter-packages/issues"
diff --git a/packages/attachment_engine/attachment_engine/test/text_renderer_test.dart b/packages/attachment_engine/attachment_engine/test/text_renderer_test.dart
index 511880d..e835404 100644
--- a/packages/attachment_engine/attachment_engine/test/text_renderer_test.dart
+++ b/packages/attachment_engine/attachment_engine/test/text_renderer_test.dart
@@ -32,7 +32,9 @@ void main() {
   Future<void> pumpTextView(
     WidgetTester tester,
     String content, {
-    TextAttachmentRenderer renderer = const TextAttachmentRenderer(),
+    TextAttachmentRenderer renderer = const TextAttachmentRenderer(
+      showSearch: true,
+    ),
   }) async {
     final file = File('${tempDir.path}/sample.txt');
     file.writeAsStringSync(content);
@@ -195,7 +197,7 @@ void main() {
       'reusing the same widget for different text reloads its lines and '
       'search results instead of keeping the previous document\'s',
       (tester) async {
-        const renderer = TextAttachmentRenderer();
+        const renderer = TextAttachmentRenderer(showSearch: true);
         final fileA = File('${tempDir.path}/a.txt');
         fileA.writeAsStringSync('apple pie\nbanana split\n');
         final fileB = File('${tempDir.path}/b.txt');