diff --git a/docs/reference/ImageDraw.rst b/docs/reference/ImageDraw.rst
index 1f5e9b57e..7c24bae93 100644
--- a/docs/reference/ImageDraw.rst
+++ b/docs/reference/ImageDraw.rst
@@ -37,7 +37,8 @@ Coordinates
 ^^^^^^^^^^^
 
 The graphics interface uses the same coordinate system as PIL itself, with (0,
-0) in the upper left corner.
+0) in the upper left corner. Any pixels drawn outside of the image bounds will
+be discarded.
 
 Colors
 ^^^^^^