- Send yourself an email from your computer or device that already has HTML signatures set up on it. It can be a blank email as long as it has your signature.
- Launch the Mail app from your Home screen.
- Tap the account your email was sent to.
- Tap the email to open it.

- Tap and hold the signature so that the selection tool appears.
- Tap Select All to highlight the entire signature.
- Tap Copy.

- Press the Home button to return to your Home screen.
- Launch Settings from your Home screen.
- Tap Mail, Contacts, Calendars.
- Tap Signature under the Mail section.

- Tap and hold the default signature so that the selection tool appears.
- Tap Select All to highlight the entire signature.
- Tap Cut.

- Tap and hold the empty Signature field to bring up the selection tool.
- Tap Paste from the pop-up menu to insert your rich HTML signature. When you paste in the copied signature iOS will automatically strip it of formatting.
- Shake your iPhone or iPad to activate the Undo tool.
- Tap Undo to remove any automatic formatting and bring back color or content from the original paste.

[yuzo_related]
Your rich HTML signature will now appear at the bottom of emails sent from your iPhone or iPad.