diff --git a/docs/src/docs/asciidoc/index.adoc b/docs/src/docs/asciidoc/index.adoc
index 45bbb17..58d2496 100644
--- a/docs/src/docs/asciidoc/index.adoc
+++ b/docs/src/docs/asciidoc/index.adoc
@@ -12,9 +12,16 @@ John Blum
 :sdg-javadoc: https://docs.spring.io/spring-data/geode/docs/current/api
 
 [[abstract]]
-
 Spring Session provides an API and implementations for managing a user's session information.
 
+ifdef::backend-html5[]
+NOTE: This documentation is also available as https://docs.spring.io/spring-session-data-geode/docs/{spring-session-version}/reference/pdf/spring-session-data-geode-reference.pdf[PDF].
+endif::[]
+
+ifdef::backend-pdf[]
+NOTE: This documentation is also available as https://docs.spring.io/spring-session-data-geode/docs/{spring-session-version}/reference/html5/index.html[HTML].
+endif::[]
+
 [[introduction]]
 == Introduction