We continue developing features for sinadura android client. Last week we added browsing and downloading documents from an Alfresco repository.
So now we can, browse repository, download a remote PDF to the mobile client, sign it with our p12 certificate with timestamp, and update the document in the repo.
Another step/part in Alfresco integration is the validation module for checking signatures, that we showed some weeks ago, using Alfresco as a Digital Signature Validation Service.
http://www.zylk.net/web/guest/web-2-0/blog/-/blogs/alfresco-ecm-working-as-a-simple-digital-signing-service