diff --git a/doc/getting-started-blue.png b/doc/getting-started-blue.png
index 1019f1a4b..21a1e409b 100644
Binary files a/doc/getting-started-blue.png and b/doc/getting-started-blue.png differ
diff --git a/doc/getting-started.png b/doc/getting-started.png
index a0d1ee803..9dcad405c 100644
Binary files a/doc/getting-started.png and b/doc/getting-started.png differ
diff --git a/doc/snippets/README.md b/doc/snippets/README.md
index ab329f282..0ac9850db 100644
--- a/doc/snippets/README.md
+++ b/doc/snippets/README.md
@@ -5,7 +5,11 @@ Snippets that possibly generate output for Magnum documentation
 
 Displayed by the `getting-started` executable. Run the app and take screenshot
 using Spectacle (including decorations, 880x707). Similarly for the gray
-version. The resulting files should be resized to half.
+version. The resulting files should be resized to half. `pngcrush` to them for
+smaller file sizes:
+
+    pngcrush -ow getting-started.png
+    pngcrush -ow getting-started-blue.png
 
 The output printed by the application can be used to update the example output
 in `doc/getting-started.dox`.