I've called Docusign and also requested they have this ability, they put in an enhancement, but not sure of their priority. I'd also note that when using Docusign Powerforms however many forms (i.e. templates) you have associated to the document will also come in as separate PDF's. Additionally we needed the ability to apply our City seal to contracts, which you can do with docusign, BUT again it does not put it where you'd want it on the last page with signatures, instead it places it on a new page which ALSO comes into Laserfiche as a separate page. So documents coming into Laserfiche from Docusign do so as several PDF's, and frankly it's a pain determining which "certificate's of completions" go with which PDF documents. Usually the easiest way to tell is by the envelope creator and time stamp. If you want to keep all the documents together, we end up generating pages of all the related PDF's  and cutting and pasting the pages to the original document they relate to. No easy task even with workflow.  Would love to hear any thoughts from others of work-arounds or questions/comments!