Apiary now has a print stylesheet for the generated Docs.
It uses numbering + table of contents and displays the examples with language you have selected in the language-dropdown.
The preferred way of sharing the documentation with 3rd-parties is through People settings (add viewers). However printing now looks great.
Feel free to comment.Shailesh commented
We have been using apiary for some time now and have been very happy with it. Some of our customers need to access this documentation in offline mode. We desperately need a way to print it to html/pdf. Printing the webpage doesn't print all the details. Is there any work around?