1 files changed, 3 insertions, 1 deletions

diff --git a/doc/lispref/display.texi b/doc/lispref/display.texi
index 323895927a9..1ba91235759 100644
--- a/doc/lispref/display.texi
+++ b/doc/lispref/display.texi
@@ -5205,7 +5205,9 @@ when the image does not have an associated file name, to provide a
 hint to ImageMagick to help it detect the image type.
 
 @item :rotation @var{angle}
-Specifies a rotation angle in degrees.
+Specifies a rotation angle in degrees.  If no rotation is explicitly
+specified, and the @acronym{EXIF} headers specify a rotation, the
+rotation from the @acronym{EXIF} headers are used instead.
 
 @item :index @var{frame}
 @c Doesn't work: http://debbugs.gnu.org/7978