diff --git a/tasks/reduce_img_size.sh b/tasks/reduce_img_size.sh
new file mode 100755
index 000000000..dbcfa0853
--- /dev/null
+++ b/tasks/reduce_img_size.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env zsh
+for fic in $@; do
+	newname="${fic:r}-web.${fic:e}"
+	convert -thumbnail 800x600\> -adaptive-sharpen 0 -quality 75% $fic $newname
+	mv $fic $fic.old
+	mv $newname $fic
+done