Generate PDF documentation

Change-Id: If69b232cc2174bf00be4314dd71085100f4e951c
Story: 2006101
Task: 35149
diff --git a/tox.ini b/tox.ini
index 1ca36b7..33b941c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -49,6 +49,17 @@
   rm -rf doc/build
   sphinx-build -W -b html doc/source doc/build/html
 
+[testenv:pdf-docs]
+basepython = python3
+deps = {[testenv:docs]deps}
+whitelist_externals =
+  make
+  rm
+commands =
+  rm -rf doc/build/pdf
+  sphinx-build -W -b latex doc/source doc/build/pdf
+  make -C doc/build/pdf
+
 [testenv:releasenotes]
 basepython = python3
 deps =