File Versioning for Signature Documents

I am uploading contracts to be sent for signature to dropbox, and then using the "Send for Signature" option in the regular Dropbox UI. 

When the document enters into the signature process, I can see the document under the "Signatures" tab on the main page, as well as the original file in my folder, and a "file.pdf(pending)" version that changes to "file.pdf(signed)" after signature completion. 

Is there a way to adjust my settings to not have a duplicate file after sending it for signature? Expected behavior would be that the file I sent for signature would become "fild.pdf(pending/signed)" and I would not see a duplicate of the file pre-signature. 

BB