Added expirimental API

git-svn-id: https://plugins.svn.wordpress.org/pdf-generator/trunk@849191 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added expirimental API

git-svn-id: https://plugins.svn.wordpress.org/pdf-generator/trunk@849192 b8457f37-d9ea-0310-8a92-e5e31aec5664