diff --git a/memos/utils.py b/memos/utils.py
index 57483a0..0e0a20d 100644
--- a/memos/utils.py
+++ b/memos/utils.py
@@ -2,27 +2,23 @@ from PIL import Image
 import piexif
 from PIL.PngImagePlugin import PngInfo
 import json
-from pathlib import Path
+
 
 def write_image_metadata(image_path, metadata):
     img = Image.open(image_path)
     image_path_str = str(image_path)
 
-    if image_path_str.lower().endswith((".jpg", ".jpeg", ".tiff")):
-        exif_dict = piexif.load(image_path)
-        updated_description = json.dumps(metadata).encode("utf-8")
-        exif_dict["0th"][piexif.ImageIFD.ImageDescription] = updated_description
+    if image_path_str.lower().endswith((".jpg", ".jpeg", ".tiff", ".webp")):
+        exif_dict = {"0th": {}, "Exif": {}, "GPS": {}, "1st": {}, "thumbnail": None}
+        exif_dict["0th"][piexif.ImageIFD.ImageDescription] = json.dumps(
+            metadata
+        ).encode("utf-8")
         exif_bytes = piexif.dump(exif_dict)
         img.save(image_path, exif=exif_bytes)
     elif image_path_str.lower().endswith(".png"):
         metadata_info = PngInfo()
         metadata_info.add_text("Description", json.dumps(metadata))
         img.save(image_path, "PNG", pnginfo=metadata_info)
-    elif image_path_str.lower().endswith(".webp"):
-        # Convert metadata to bytes
-        metadata_bytes = json.dumps(metadata).encode('utf-8')
-        # Use exif parameter to save metadata
-        img.save(image_path, "WebP", exif=metadata_bytes, quality=85)
     else:
         print(f"Skipping unsupported file format: {image_path_str}")
 
@@ -31,32 +27,23 @@ def get_image_metadata(image_path):
     img = Image.open(image_path)
     image_path_str = str(image_path)
 
-    if image_path_str.lower().endswith((".jpg", ".jpeg", ".tiff")):
-        exif_dict = piexif.load(str(image_path))  # Convert Path object to string
-        existing_description = exif_dict["0th"].get(
-            piexif.ImageIFD.ImageDescription, b"{}"
-        )
+    if image_path_str.lower().endswith((".jpg", ".jpeg", ".tiff", ".webp")):
         try:
+            exif_dict = piexif.load(image_path_str)
+            existing_description = exif_dict["0th"].get(
+                piexif.ImageIFD.ImageDescription, b"{}"
+            )
             return json.loads(existing_description.decode("utf-8"))
-        except json.JSONDecodeError as e:
-            print(f"Error decoding JSON metadata for {image_path_str}: {e}")
-            return {}
+        except Exception as e:
+            print(f"Error decoding EXIF metadata for {image_path_str}: {e}")
+            return None
     elif image_path_str.lower().endswith(".png"):
         existing_description = img.info.get("Description", "{}")
         try:
             return json.loads(existing_description)
         except json.JSONDecodeError as e:
-            print(f"Error decoding JSON metadata for {image_path_str}: {e}")
-            return {}
-    elif image_path_str.lower().endswith(".webp"):
-        existing_metadata = img.info.get("exif", b"{}")
-        try:
-            if isinstance(existing_metadata, bytes):
-                existing_metadata = existing_metadata.decode('utf-8')
-            return json.loads(existing_metadata)
-        except json.JSONDecodeError as e:
-            print(f"Error decoding JSON metadata for {image_path_str}: {e}")
-            return {}
+            print(f"Error decoding PNG metadata for {image_path_str}: {e}")
+            return None
     else:
         print(f"Unsupported file format: {image_path_str}")
-        return None
\ No newline at end of file
+        return None