... ... ..... 1.2.1.1 Pine 3.90 and Later

Pine automatically appends ~/.signature (if it exists) to your messages.  
To change Pine's signature features:

1. From the Main Menu type S for Setup
2. Type C for Configuration
3. To change the value of the signature-at-bottom feature:
   a) Spacebar and arrow down to the signature-at-bottom variable
   b) Type X to set/unset this variable.
4. To change the name of your signature file:
   a) Arrow down to the signature-file line
   b) Type C for Change Value
   c) Type the path and name of the file you want to use for your
      signature.  Note that ~ can be used for your $HOME directory.