diff --git a/PPOCRLabel/PPOCRLabel.py b/PPOCRLabel/PPOCRLabel.py
index 824df7a9afa61e35fb214b9b7617bc7a2e081e05..c17db91a5b5cd9d3cbb4b5bf6c87afd745d0870d 100644
--- a/PPOCRLabel/PPOCRLabel.py
+++ b/PPOCRLabel/PPOCRLabel.py
@@ -2335,10 +2335,7 @@ class MainWindow(QMainWindow):
                     bbox = np.array(region['res']['boxes'][i])
                     rec_text = region['res']['rec_res'][i][0]
 
-                    # polys to rectangles
-                    x1, y1 = np.min(bbox[0::2]), np.min(bbox[::1])
-                    x2, y2 = np.max(bbox[0::2]), np.max(bbox[::1])
-                    rext_bbox = [[x1, y1], [x2, y1], [x2, y2], [x1, y2]]
+                    rext_bbox = [[bbox[0], bbox[1]], [bbox[2], bbox[1]], [bbox[2], bbox[3]], [bbox[0], bbox[3]]]
 
                     # save bbox to shape
                     shape = Shape(label=rec_text, line_color=DEFAULT_LINE_COLOR, key_cls=None)
diff --git a/PPOCRLabel/libs/canvas.py b/PPOCRLabel/libs/canvas.py
index ae9511612a2ba83001c12ae8ed82498952207f98..81f37995126140b03650f5ddea37ea282d5ceb09 100644
--- a/PPOCRLabel/libs/canvas.py
+++ b/PPOCRLabel/libs/canvas.py
@@ -627,7 +627,7 @@ class Canvas(QWidget):
         # adaptive BBOX label & index font size
         if self.pixmap:
             h, w = self.pixmap.size().height(), self.pixmap.size().width()
-            fontszie = int(max(h, w) / 96)
+            fontszie = int(max(h, w) / 48)
             for s in self.shapes:
                 s.fontsize = fontszie