Firstly, I'm assuming that you have a Forms ES Server if you are rendering a Guide. This could be either version ES1, ES2/2.5 or ES3/ADEP
If you submit the form back to the server, you can populate a second (PDF/XDP) form with the data bound to the same schema/Data Model using Forms ES.
You referred to the next user in the chain - If you are using Process Management, this is very easy, as you define what form is used to render the data in the "Presentation & Data" section of the Assign Task activity