Email signatures that look right in every inbox.

Gmail

1. In Signature Studio, choose Copy signature.
2. In Gmail, open Settings (the gear, top right) and choose See all settings.
3. On the General tab, scroll to Signature and choose Create new. Give it a name.
4. Click in the signature box and paste (Ctrl+V, or ⌘V on a Mac).
5. Under Signature defaults, pick it for new emails and for replies/forwards.
6. Scroll to the bottom and choose Save Changes.

Gmail limits signatures to 10,000 characters and only shows images that are online — the health check and image hosting take care of both.

Outlook on the web & new Outlook

1. Choose Copy signature.
2. In Outlook on the web (Microsoft 365 or Outlook.com) or the new Outlook for Windows, open Settings (the gear, top right).
3. Go to Account › Signatures and choose + New signature. Name it.
4. Click in the editor and paste.
5. Under Select default signatures, choose it for new messages and for replies/forwards, then Save.

Microsoft 365 keeps signatures in your mailbox, so one set up here follows you to the new Outlook on other computers.

Classic Outlook for Windows

1. Choose Copy signature.
2. In Outlook, open File › Options › Mail › Signatures…
3. Choose New, type a name and press OK.
4. Click in Edit signature and paste.
5. On the right, under Choose default signature, set it for New messages and Replies/forwards, then OK.

If pasting changes the spacing, choose Download for Outlook (.htm) instead, press Windows+R, type %APPDATA%\Microsoft\Signatures, put the file in that folder and restart Outlook. If a motion design shows as a still picture, tick Play animated GIFs under File › Options › Advanced; Outlook 2016 and older always shows the first frame.

Outlook for Mac

1. Choose Copy signature.
2. In Outlook, open Outlook › Settings › Signatures.
3. Add a new signature (+), name it and paste into the editor.
4. Choose it as the default for new messages and replies for your account, then close the window to save.

Apple Mail

1. Choose Copy signature.
2. In Mail, open Mail › Settings › Signatures, select your account and press +.
3. Untick Always match my default message font.
4. Click into the preview on the right, select its contents and paste.
5. Close Settings, then pick the signature in Choose Signature for that account.

iPhone & iPad

1. Open this page on your iPhone or iPad, load your signature (use My signatures or your share link) and choose Copy signature.
2. Open Settings › Apps › Mail › Signature (on older iOS: Settings › Mail › Signature).
3. Delete “Sent from my iPhone”, then touch and hold and choose Paste.
4. If the formatting disappears, shake the device and tap Undo to keep it.

The Gmail and Outlook phone apps only accept plain text — use Copy plain text for those.