diff --git a/seminar/management/commands/generate_thumbnails.py b/seminar/management/commands/generate_thumbnails.py
new file mode 100644
index 00000000..e52ea9bc
--- /dev/null
+++ b/seminar/management/commands/generate_thumbnails.py
@@ -0,0 +1,18 @@
+from django.core.management.base import BaseCommand
+
+from seminar.models import Cislo
+
+from subprocess import CalledProcessError
+import logging
+
+logger = logging.getLogger(__name__)
+
+class Command(BaseCommand):
+	def handle(self, *args, **options):
+		for c in Cislo.objects.all():
+			try:
+				c.vygeneruj_nahled()
+			except CalledProcessError:
+				logger.warning(f"Číslo {c} nezvládlo vygenerovat náhled titulky!")
+				pass
+