diff --git a/doc/src/JPG/gran_funnel_small.jpg b/doc/src/JPG/gran_funnel_small.jpg
deleted file mode 100644
index 6e29803388..0000000000
Binary files a/doc/src/JPG/gran_funnel_small.jpg and /dev/null differ
diff --git a/doc/src/JPG/gran_mixer_small.jpg b/doc/src/JPG/gran_mixer_small.jpg
deleted file mode 100644
index 7cc85d92bf..0000000000
Binary files a/doc/src/JPG/gran_mixer_small.jpg and /dev/null differ
diff --git a/doc/src/fix_wall_gran_region.rst b/doc/src/fix_wall_gran_region.rst
index ecf850f11e..d31a2248f8 100644
--- a/doc/src/fix_wall_gran_region.rst
+++ b/doc/src/fix_wall_gran_region.rst
@@ -69,11 +69,11 @@ Click on the images to see a bigger picture.  Movies of these
 simulations are `here on the Movies page <https://lammps.sandia.gov/movies.html#granregion>`_ of the LAMMPS
 web site.
 
-.. image:: JPG/gran_funnel_small.jpg
-   :target: JPG/gran_funnel.png
+.. image:: img/gran_funnel.png
+   :scale: 50%
 
-.. image:: JPG/gran_mixer_small.jpg
-   :target: JPG/gran_mixer.png
+.. image:: img/gran_mixer.png
+   :scale: 50%
 
 ----------
 
diff --git a/doc/src/JPG/gran_funnel.png b/doc/src/img/gran_funnel.png
similarity index 100%
rename from doc/src/JPG/gran_funnel.png
rename to doc/src/img/gran_funnel.png
diff --git a/doc/src/JPG/gran_mixer.png b/doc/src/img/gran_mixer.png
similarity index 100%
rename from doc/src/JPG/gran_mixer.png
rename to doc/src/img/gran_mixer.png