When using DC and CAC will not let me save error (105)

[Lynne28048301y79z]

Using Dell, Windows, Edge, Adobe DC: when trying to sign military document with my CAC I am able to see and click signature box, select certificates,  chose file location, but when I click save it tells me document is not able to be saved erroer (105).  I am also not able to edit document to sign that way :XFA document can not be edited using Adobe Acrobat.

HELP

[Thom Parker]

XFA forms are not real PDFs.  While XFA forms can be filled in Acrobat, they are a different type of technology than PDF and can only be edited in the AEM tools.  I've seen this error come up a couple of times now. I suspect it is because the XFA form was opened in a non-compliant tool and corrupted, but that's just a guess.  

Please ask this question on the AEM forum.