Open Outlook
Click File
Click Options
Click Mail
Click Signatures
Under Select signature to edit, choose New (or select an existing signature)
Enter a name for the signature
In the Edit signature box, type or paste your signature content
To format it, use the formatting tools in the editor
Set Choose default signature options:
E-mail account: select the account to apply the signature
New messages: select the signature to use
Replies/forwards: select the signature to use
Click Save
If needed, create separate signatures for different accounts or message types using the same steps
Close the Options window