How to add an email signature in Gmail

Gmail on the web

1. Copy your signature. The free generator gives you a clean one with a Copy signature button.
2. In Gmail, click the gear icon, then See all settings.
3. Stay on the General tab and scroll to Signature.
4. Click Create new, give it a name, then click into the editor and paste (Ctrl+V or ⌘+V).
5. Under Signature defaults, pick it for For new emails use and On reply/forward use.
6. Scroll to the bottom and click Save changes.

Why the logo does not show, and the fix

Gmail keeps images only when they are hosted at a public web address. An image embedded in the signature (which is what you get when you upload a file to most generators, or paste a picture from your computer) is dropped when you save.

Three ways that work:

• Link to a logo on your website. In the generator, use the link to a logo option with a URL such as https://yourcompany.com/logo.png. This is the most reliable.
• Insert from Google Drive. In Gmail's editor click the image icon, choose the file in Drive, and make sure sharing is set to Anyone with the link, or recipients see a broken image.
• Insert by web address in the same dialog, pasting the image URL.

Keep the logo small: about 100 to 150 pixels wide, exported at double size for sharp screens.

More than one signature

Gmail lets you keep several signatures per account. Create each one under Signature, set one as the default, and switch while writing with the pen icon at the bottom of the compose window. A common pair is a full signature for new mail and a two-line one for replies; the generator's Compact template is made for the second.

Gmail on iPhone and Android

The Gmail app has its own Mobile signature under Settings → your account, and it is plain text. Leave it off and the app uses no signature at all; it does not use your web signature. The only way to get the same signature from a phone is to add it after sending, which is what server-side tools do.

Google Workspace: setting signatures for everyone

The Workspace admin console cannot push a full signature to every user; the built-in append footer option adds plain text at the very bottom of the message, below quoted replies. UnifySig writes each person's signature through the Gmail API with fields from Google Directory, assigns by organisational unit or group, and re-syncs when the directory changes.