diff --git a/app/pdf-viewer/buffer.py b/app/pdf-viewer/buffer.py
index 4ecfc9e..edd13e8 100755
--- a/app/pdf-viewer/buffer.py
+++ b/app/pdf-viewer/buffer.py
@@ -46,6 +46,9 @@ class AppBuffer(Buffer):
             self.buffer_widget.jump_to_link(str(result_content))
         elif result_type == "local_search_text":
             self.buffer_widget.local_search_text(str(result_content))
+        elif result_type == "global_search_text":
+            self.buffer_widget.global_search_text(str(result_content))
+
 
     def scroll(self, scroll_direction, scroll_type):
         if scroll_type == "page":
@@ -131,6 +134,20 @@ class AppBuffer(Buffer):
         else:
             self.buffer_widget.send_input_message("Search text: ", "local_search_text")
 
+    def global_search_text(self):
+        if self.buffer_widget.is_global_search_text:
+            self.buffer_widget.delete_all_mark_global_search_text()
+        else:
+            self.buffer_widget.send_input_message("Search text: ", "global_search_text")
+
+    def global_search_text_next(self):
+        if self.buffer_widget.is_global_search_text:
+            self.buffer_widget.global_search_text_next()
+
+    def global_search_text_last(self):
+        if self.buffer_widget.is_global_search_text:
+            self.buffer_widget.global_search_text_last()
+
 class PdfViewerWidget(QWidget):
     translate_double_click_word = QtCore.pyqtSignal(str)
 
@@ -169,6 +186,10 @@ class PdfViewerWidget(QWidget):
         self.is_local_search_text = False
         self.local_search_text_annot_cache_dict = {}
 
+        #global search text
+        self.is_global_search_text = False
+        self.global_search_text_offset_list = []
+
         # Init scroll attributes.
         self.scroll_step = 20
         self.scroll_offset = 0
@@ -557,6 +578,39 @@ class PdfViewerWidget(QWidget):
         self.page_cache_pixmap_dict.clear()
         self.update()
 
+    def global_search_text(self, text):
+        self.is_global_search_text = True
+        self.local_search_text(text)
+
+        search_text_index = 0
+        self.global_search_text_index = 0
+        for page_index in range(self.page_total_number):
+            quads_list = self.document.searchPageFor(page_index, text, hit_max=999, quads=True)
+            if quads_list:
+                for quad in quads_list:
+                    search_text_offset = (page_index * self.page_height + quad.ul.y) * self.scale
+
+                    self.global_search_text_offset_list.append(search_text_offset)
+                    if search_text_offset > self.scroll_offset and search_text_offset < (self.scroll_offset + self.rect().height()):
+                        self.global_search_text_index = search_text_index
+                    search_text_index += 1
+
+    def global_search_text_next(self):
+        if len(self.global_search_text_offset_list) > 0:
+            self.global_search_text_index = (self.global_search_text_index + 1) % len(self.global_search_text_offset_list)
+            self.update_scroll_offset(self.global_search_text_offset_list[self.global_search_text_index])
+
+    def global_search_text_last(self):
+        if len(self.global_search_text_offset_list) > 0:
+            self.global_search_text_index = (self.global_search_text_index - 1) % len(self.global_search_text_offset_list)
+            self.update_scroll_offset(self.global_search_text_offset_list[self.global_search_text_index])
+
+    def delete_all_mark_global_search_text(self):
+        self.is_global_search_text = False
+        self.is_local_search_text = False
+        self.delete_all_mark_local_search_text()
+        self.global_search_text_offset_list.clear()
+
     def jump_to_page(self, page_num):
         self.update_scroll_offset(min(max(self.scale * (int(page_num) - 1) * self.page_height, 0), self.max_scroll_offset()))
 
diff --git a/eaf.el b/eaf.el
index 5aced5d..6b844ac 100644
--- a/eaf.el
+++ b/eaf.el
@@ -238,7 +238,10 @@ Try not to modify this alist directly. Use `eaf-setq' to modify instead."
     ("i" . "toggle_inverted_mode")
     ("m" . "toggle_mark_link")
     ("f" . "jump_to_link")
-    ("s" . "local_search_text"))
+    ("s" . "local_search_text")
+    ("S" . "global_search_text")
+    ("n" . "global_search_text_next")
+    ("N" . "global_search_text_last"))
   "The keybinding of EAF PDF Viewer."
   :type 'cons)