diff --git a/distribusi/distribusi/distribusi.py b/distribusi/distribusi/distribusi.py
index 7cf85b8..f6eb696 100644
--- a/distribusi/distribusi/distribusi.py
+++ b/distribusi/distribusi/distribusi.py
@@ -18,6 +18,7 @@ import uuid
 from distribusi.ignore import Ignore
 
 import traceback
+import json
 
 MIME_TYPE = magic.Magic(mime=True)
 
@@ -41,9 +42,10 @@ def caption(image):
     return caption
 
 
-def thumbnail(image, name, args):
+def thumbnail(image, name, args, size=(450,450)):
+    
     try:
-        size = (450, 450)
+        # size = (450, 450)
         im = Image.open(image)
         exif = None
         try:
@@ -201,7 +203,14 @@ def render_dir(args, directory):
                     if type_ == 'image':
                         a = FILE_TYPES[type_].format(relative_path, c, c)
                         if args.thumbnail:
-                            a = thumbnail(full_path, relative_path, args)
+                            thumbconf_path = "./{}/{}".format(root, "thumbconf.json")
+                            size = (450, 450)
+                            if os.path.isfile(thumbconf_path):
+                                with open(thumbconf_path) as json_file:
+                                    json_data = json.load(json_file)
+                                    size = tuple(json_data['size'])
+                                    print("applying thumbconf.json: size: ", size)
+                            a = thumbnail(full_path, relative_path, args, size)
                         if args.no_filenames:
                             c = ""
                         if args.captions:
diff --git a/test_data/.ignore b/test_data/.ignore
index 97a206e..f6e4eda 100644
--- a/test_data/.ignore
+++ b/test_data/.ignore
@@ -12,4 +12,5 @@ style.css
 404.html
 main.js
 .+.alt
-events
\ No newline at end of file
+events
+thumbconf.json
\ No newline at end of file