1
Copy your signature text
Click the orange "Copy Signature Text" button above
2
Copy the banner image
Right-click the banner image above → Select "Copy image"
3
Open Outlook Signatures
Go to File → Options → Mail → Signatures
Click New or select an existing signature
4
Paste both items
Press Ctrl+V to paste your text, then press Ctrl+V again to paste the banner image. Click OK to save.