diff --git a/synapse/rest/media/v1/media_repository.py b/synapse/rest/media/v1/media_repository.py
index 2b693ae548..3cbeca503c 100644
--- a/synapse/rest/media/v1/media_repository.py
+++ b/synapse/rest/media/v1/media_repository.py
@@ -98,6 +98,8 @@ class MediaRepository(object):
         with open(fname, "wb") as f:
             f.write(content)
 
+        logger.info("Stored local media in file %r", fname)
+
         yield self.store.store_local_media(
             media_id=media_id,
             media_type=media_type,
@@ -190,6 +192,8 @@ class MediaRepository(object):
             else:
                 upload_name = None
 
+            logger.info("Stored remote media in file %r", fname)
+
             yield self.store.store_cached_remote_media(
                 origin=server_name,
                 media_id=media_id,
diff --git a/synapse/rest/media/v1/thumbnailer.py b/synapse/rest/media/v1/thumbnailer.py
index 0bb3676844..3868d4f65f 100644
--- a/synapse/rest/media/v1/thumbnailer.py
+++ b/synapse/rest/media/v1/thumbnailer.py
@@ -16,6 +16,10 @@
 import PIL.Image as Image
 from io import BytesIO
 
+import logging
+
+logger = logging.getLogger(__name__)
+
 
 class Thumbnailer(object):
 
@@ -86,4 +90,5 @@ class Thumbnailer(object):
         output_bytes = output_bytes_io.getvalue()
         with open(output_path, "wb") as output_file:
             output_file.write(output_bytes)
+        logger.info("Stored thumbnail in file %r", output_path)
         return len(output_bytes)
diff --git a/synapse/rest/media/v1/upload_resource.py b/synapse/rest/media/v1/upload_resource.py
index b716d1d892..4ab33f73bf 100644
--- a/synapse/rest/media/v1/upload_resource.py
+++ b/synapse/rest/media/v1/upload_resource.py
@@ -97,6 +97,8 @@ class UploadResource(Resource):
             content_length, requester.user
         )
 
+        logger.info("Uploaded content with URI %r", content_uri)
+
         respond_with_json(
             request, 200, {"content_uri": content_uri}, send_cors=True
         )