How to Add Signature to e-mail when sending a File (Outlook/Office 2013)
If you send a document (or other file type) via e-mail directly from a program (Word, Excel, etc.) Outlook will automatically open a new e-mail with the document attached. Even if you have Auto-Signature turned on, the new e-mail will not have your signature in the body. You will have to add your signature manually each time using the instructions below.