Update app.py

app.py

@@ -13,6 +13,7 @@ def draw_ruler(image, dpi=72, font_size=144):
         PIL.Image.Image: The image with the ruler drawn on it.
     """
     dpi = image.info.get("dpi", (72, 72))
+    print("dpi:",image.info.get("dpi",(300,300)))
     dpi = dpi[0] if isinstance(dpi, tuple) else dpi
     # Create a drawing context
     draw = ImageDraw.Draw(image)