When printing a subtree, TreePad currently does not indent node names or articles the way they appear in the tree.
To achieve this effect:
(1) First export the tree (or a node and its child nodes) as HTML.
(2) Open the HTML file in your Web browser and print it from there.
For more details on exporting the tree, please see
[node://TreePad Lite Manual/TreePad Lite reference/The tree/Exporting a subtree to file]