Update app.py

app.py

@@ -153,7 +153,9 @@ def overlay_text_on_image(img, text, position, text_color=(255, 255, 255), box_c
             r = font_size - 1
     font_size = max(l-1, 1)
 
-    text_width, text_height = draw.textsize(text, font=font)
+    left, upper, right, lower = draw.textbbox((0, 0), text, font=font)
+    text_width = right - left
+    text_height = lower - upper
 
     if position == 'top-left':
         x, y = 0, 0