a) If you received your signature via e-mail, please right click on the attachment and save it to the destination of your choosing.
b) If you are downloading it, the signature may save to your downloads folder or you may may choose a destination to save the file.
2. In Apple Mail, go to Preferences > Signatures and create a signature with any random content. Name it something meaningful in the central column. You will be swapping this out later.
3. Associate the placeholder signature with one of your email accounts by dragging its name from the second column in the Preferences > Signatures window to an email account in the first column.
4. Close the Preferences window to save it, then quit Apple Mail.
5. Open “Stationery Saved” using text editor, copy the HTML code from top to bottom.
5. Click on “Go” and proceed to folder ~/Library/Mail/V3/MailData/Signatures/
this folder may vary to:
6. Look for the latest file that ends with mail signature, open the file using text editor and paste the HTML code from the stationery.
7. Save the file and lock it, the signature should set up correctly.
8. To test that the email signature is working correctly, simply compose a new email associated with this signature in step 2. Choose the signature (right side of screen) that corresponds with the name you created in step 1. If the images show, and everything looks as it should, you have succeeded!