diff --git a/README.md b/README.md
index 5e22694c..822cd033 100644
--- a/README.md
+++ b/README.md
@@ -405,6 +405,7 @@ press `g` to toggle grid-view instead of the file listing,  and `t` toggles icon
 
 it does static images with Pillow / pyvips / FFmpeg, and uses FFmpeg for video files, so you may want to `--no-thumb` or maybe just `--no-vthumb` depending on how dangerous your users are
 * pyvips is 3x faster than Pillow, Pillow is 3x faster than FFmpeg
+* disable thumbnails for specific volumes with volflag `dthumb` for all, or `dvthumb` / `dathumb` / `dithumb` for video/audio/images only
 
 audio files are covnerted into spectrograms using FFmpeg unless you `--no-athumb` (and some FFmpeg builds may need `--th-ff-swr`)
 
diff --git a/copyparty/authsrv.py b/copyparty/authsrv.py
index 962316ec..156fbee4 100644
--- a/copyparty/authsrv.py
+++ b/copyparty/authsrv.py
@@ -875,6 +875,17 @@ class AuthSrv(object):
 
             vol.flags["html_head"] = "\n".join([x for x in h if x])
 
+        for vol in vfs.all_vols.values():
+            if self.args.no_vthumb:
+                vol.flags["dvthumb"] = True
+            if self.args.no_athumb:
+                vol.flags["dathumb"] = True
+            if self.args.no_thumb or vol.flags.get("dthumb", False):
+                vol.flags["dthumb"] = True
+                vol.flags["dvthumb"] = True
+                vol.flags["dathumb"] = True
+                vol.flags["dithumb"] = True
+
         for vol in vfs.all_vols.values():
             fk = vol.flags.get("fk")
             if fk:
diff --git a/copyparty/httpcli.py b/copyparty/httpcli.py
index fd706cf1..34b82d7b 100644
--- a/copyparty/httpcli.py
+++ b/copyparty/httpcli.py
@@ -2097,9 +2097,7 @@ class HttpCli(object):
 
                 thp = None
                 if self.thumbcli:
-                    thp = self.thumbcli.get(
-                        dbv.realpath, vrem, int(st.st_mtime), th_fmt
-                    )
+                    thp = self.thumbcli.get(dbv, vrem, int(st.st_mtime), th_fmt)
 
                 if thp:
                     return self.tx_file(thp)
diff --git a/copyparty/th_cli.py b/copyparty/th_cli.py
index b2601f30..e8a18e0e 100644
--- a/copyparty/th_cli.py
+++ b/copyparty/th_cli.py
@@ -37,13 +37,14 @@ class ThumbCli(object):
     def log(self, msg, c=0):
         self.log_func("thumbcli", msg, c)
 
-    def get(self, ptop, rem, mtime, fmt):
+    def get(self, dbv, rem, mtime, fmt):
+        ptop = dbv.realpath
         ext = rem.rsplit(".")[-1].lower()
-        if ext not in self.thumbable:
+        if ext not in self.thumbable or "dthumb" in dbv.flags:
             return None
 
         is_vid = ext in self.fmt_ffv
-        if is_vid and self.args.no_vthumb:
+        if is_vid and "dvthumb" in dbv.flags:
             return None
 
         want_opus = fmt in ("opus", "caf")
@@ -53,12 +54,14 @@ class ThumbCli(object):
                 if self.args.no_acode:
                     return None
             else:
-                if self.args.no_athumb:
+                if "dathumb" in dbv.flags:
                     return None
         elif want_opus:
             return None
 
         is_img = not is_vid and not is_au
+        if is_img and "dithumb" in dbv.flags:
+            return None
 
         preferred = self.args.th_dec[0] if self.args.th_dec else ""