diff --git a/lib/sheet_viewer_page.dart b/lib/sheet_viewer_page.dart
index dc7e63c..7853d13 100644
--- a/lib/sheet_viewer_page.dart
+++ b/lib/sheet_viewer_page.dart
@@ -26,6 +26,7 @@ class _SheetViewerPageState extends State<SheetViewerPage> {
   bool isFullscreen = false;
   late Future<bool> documentLoaded;
   PdfDocument? document;
+  bool twoPageMode = true;
 
   @override
   void initState() {
@@ -79,58 +80,77 @@ class _SheetViewerPageState extends State<SheetViewerPage> {
           if (snapshot.hasData && document != null) {
             numPages = document!.pages.length;
 
-            return GestureDetector(
-              onTapUp: (TapUpDetails details) {
-                // Get the size of the screen
-                final screenWidth = MediaQuery.of(context).size.width;
+            return Stack(
+              children: [
+                Container(
+                  alignment: Alignment.bottomLeft,
+                  margin: EdgeInsets.all(10),
+                  child: FloatingActionButton(
+                    onPressed: () {
+                      setState(() {
+                        twoPageMode = !twoPageMode;
+                      });
+                    },
+                    child: Icon(twoPageMode ? Icons.filter_1 : Icons.filter_2),
+                  ),
+                ),
+                GestureDetector(
+                  onTapUp: (TapUpDetails details) {
+                    // Get the size of the screen
+                    final screenWidth = MediaQuery.of(context).size.width;
 
-                // print("Touch at y = ${details.localPosition.dy}");
-                // print("Touch at x = ${details.localPosition.dx}");
-                // print("Screenwidth = ${screenWidth}");
-                // Check where the user tapped
-                // if (details.localPosition.dy < 100) {
-                // TODO
-                // setState(() {
-                //   toggleFullscreen();
-                // });
-                if (details.localPosition.dx < screenWidth / 2) {
-                  // Left half of the screen
-                  setState(() {
-                    page = page > 1 ? page - 1 : 1;
-                  });
-                } else {
-                  // Right half of the screen
-                  setState(() {
-                    page = page < numPages ? page + 1 : numPages;
-                  });
-                }
-              },
-              child: Row(
-                mainAxisAlignment: MainAxisAlignment.center,
-                children: [
-                  Stack(
+                    // print("Touch at y = ${details.localPosition.dy}");
+                    // print("Touch at x = ${details.localPosition.dx}");
+                    // print("Screenwidth = ${screenWidth}");
+                    // Check where the user tapped
+                    // if (details.localPosition.dy < 100) {
+                    // TODO
+                    // setState(() {
+                    //   toggleFullscreen();
+                    // });
+                    if (details.localPosition.dx < screenWidth / 2) {
+                      // Left half of the screen
+                      setState(() {
+                        page = page > 1 ? page - 1 : 1;
+                      });
+                    } else {
+                      // Right half of the screen
+                      setState(() {
+                        page = page < numPages ? page + 1 : numPages;
+                      });
+                    }
+                  },
+                  child: Row(
+                    mainAxisAlignment: MainAxisAlignment.center,
                     children: [
-                      PdfPageView(
-                        key: ValueKey(page),
-                        document: document,
-                        pageNumber: page,
-                        alignment: Alignment.center,
+                      Stack(
+                        children: [
+                          PdfPageView(
+                            key: ValueKey(page),
+                            document: document,
+                            pageNumber: page,
+                            alignment: Alignment.center,
+                          ),
+                          Container(
+                            alignment: Alignment.bottomCenter,
+                            padding: EdgeInsets.only(bottom: 5),
+                            child: Text('$page / $numPages'),
+                          ),
+                        ],
                       ),
-                      Container(
-                        alignment: Alignment.bottomCenter,
-                        padding: EdgeInsets.only(bottom: 5),
-                        child: Text('$page / $numPages'),
+                      Visibility(
+                        visible: twoPageMode == true,
+                        child: PdfPageView(
+                          key: ValueKey(page),
+                          document: document,
+                          pageNumber: page + 1,
+                          alignment: Alignment.center,
+                        ),
                       ),
                     ],
                   ),
-                  // PdfPageView(
-                  //   key: ValueKey(page),
-                  //   document: document,
-                  //   pageNumber: page + 1,
-                  //   alignment: Alignment.center,
-                  // ),
-                ],
-              ),
+                ),
+              ],
             );
           } else if (snapshot.hasError) {
             return Center(