diff --git a/css/print/pdf.css b/css/print/pdf.css
index 7bcc6cb..ca42f4f 100644
--- a/css/print/pdf.css
+++ b/css/print/pdf.css
@@ -142,6 +142,7 @@ ul, ol, div, p {
 }
 .reveal img {
 	box-shadow: none;
+	max-height: 80%;
 }
 .reveal .roll {
 	overflow: visible;