b) Open the Gmail account you’d like to add the email signature for
c) Click the ‘cog’ button (top right of the screen) and choose ‘Settings’
d) Scroll down to the ‘Signature’ section (in the ‘general’ tab)
e) ‘Paste’ the signature inside the white signature box (press Ctrl+V in Windows or Command ⌘+V on Mac inside the white box)
f) ‘check’ the checkbox underneath the signature box (saying ‘insert this signature before the quoted text in replies and remove the “–” line that precedes it.’)
g) Scroll to the bottom and click ‘Save changes’ to apply.
Your signature is now installed!