Prompt for user input for custom file naming using Auto-Save?


I have a need to save PDF files in the same place over and over again through a printer, and I think Auto-save is the right feature to accomplish that.  But I also need to include an ID number that the user who is printing the document assigns to the document when they print it off a web page. Is it possible to have a prompt using Autosave so the user puts in a field and then the contents of that field can be used to name the file that is saved to the configured directory?