Mar 19, 2026

How to Add a Signature in Gmail

Gmail Email Signature How-to Gmail Settings Email Productivity

Gmail lets you create email signatures that automatically appear at the bottom of every message you send. You can set them up on desktop or mobile, include images and links, and even switch between multiple signatures depending on the context. If you use Outlook, see how to add a signature in Outlook.

1. Create a Signature in Gmail (Desktop)

Open Gmail and click the gear icon in the top right.
Click See all settings.
On the General tab, scroll down to the Signature section.
Click Create new.
Name your signature (e.g., “Work” or “Personal”) and click Create.
Type your signature in the text editor. Use the formatting toolbar to bold text, change fonts, or adjust sizing.
Scroll to the bottom of the page and click Save Changes.

Your signature will now appear automatically when you compose a new email.

2. Add a Signature in the Gmail Mobile App

The Gmail mobile app supports a plain-text signature only — no images, links, or formatting. It’s separate from your desktop signature.

iOS:

Open the Gmail app and tap the hamburger menu (three lines) in the top left.
Scroll down and tap Settings.
Tap your email account.
Tap Signature settings.
Toggle Mobile Signature on.
Type your signature and tap Save (or navigate back).

Android:

Open the Gmail app and tap the hamburger menu.
Tap Settings.
Tap your email account.
Tap Mobile Signature.
Type your signature and tap OK.

The mobile signature is completely independent from your desktop signatures. Changing one does not affect the other.

3. Create Multiple Signatures and Switch Between Them

Gmail lets you create as many signatures as you want and assign them to different situations.

To create additional signatures:

Go to Settings > See all settings > Signature section.
Click Create new and name the signature.
Write the content in the editor.
Repeat for each signature you need.

To switch signatures when composing:

Open a new compose window.
Click the pen icon (Insert signature) in the bottom toolbar.
Select the signature you want from the list.

This is useful if you need different signatures for different roles, clients, or levels of formality.

4. Set Different Signatures for New Emails vs. Replies

Under the signature editor in Settings > See all settings > General tab, you’ll find Signature defaults. This section has two dropdown menus:

For new emails use: — select which signature appears when you start a new email.
On reply/forward use: — select which signature (or no signature) appears when you reply or forward.

If you send a lot of replies in long threads, setting replies to use a shorter signature (or none) keeps the conversation clean. Set your full signature for new emails only.

If you use multiple Gmail accounts, configure signature defaults separately for each one.

5. Add an Image or Logo to Your Signature

In the Signature editor (under See all settings > General), place your cursor where you want the image.
Click the Insert Image icon in the formatting toolbar (looks like a small photo).
You have three options:
- My Drive — select an image from Google Drive.
- Upload — upload an image from your computer.
- Web Address (URL) — paste a direct link to an image hosted online.
Once inserted, click the image and choose Small, Medium, or Large to resize it.

Tips for signature images:

Keep images under 100px tall so they don’t dominate the email.
Use PNG for logos with transparency, JPG for photos.
Host the image somewhere permanent (Google Drive with public sharing, or your company’s CDN). If the source file gets deleted, the image breaks in every past and future email.
Avoid using an image as your entire signature — many email clients block images by default, and the recipient will see nothing.

6. Add a Hyperlink to Your Signature

Hyperlinks turn plain text into clickable links — useful for your website, a scheduling page, a portfolio, or a booking link.

In the Signature editor, type the text you want to turn into a link (e.g., “Book a meeting with me” or “Visit our website”).
Highlight the text.
Click the Link icon in the formatting toolbar (chain link icon), or press Ctrl+K (Windows) / Cmd+K (Mac).
Paste the URL and click OK.

The linked text will appear underlined and in blue. You can link as many pieces of text as you want within a single signature.

What to link in your signature:

Your company website
A booking or scheduling link (Calendly, Cal.com, Carly, etc.)
Your LinkedIn profile
A relevant landing page

For a detailed walkthrough on adding a booking link specifically, see How to add a booking link to your email signature.

7. Formatting Tips and Common Mistakes

Keep it short. Name, title, company, and one or two links is enough. Four-line signatures outperform ten-line signatures because people actually read them.

Don’t paste from Word or Google Docs. Rich text editors carry hidden formatting that can make your signature look different across email clients. Type directly in Gmail’s signature editor, or paste as plain text first (Ctrl+Shift+V).

Test on mobile. Send yourself an email and open it on your phone. Images that look fine on desktop can appear oversized or misaligned on mobile.

Don’t use too many fonts or colors. Stick to one font and one accent color. Busy signatures look unprofessional and can trigger spam filters.

Check your links. Click every hyperlink in your signature after saving. Broken links — especially broken booking links — mean missed meetings.

8. Add a Booking Link to Let People Schedule Time With You

One of the highest-value things you can put in your Gmail signature is a link that lets recipients book time on your calendar directly. Instead of going back and forth over email trying to find a time, they click the link, see your availability, and pick a slot.

Carly generates booking pages that sync with your real-time calendar availability. Add your Carly booking link to your Gmail signature using the hyperlink steps in section 6, and every email you send becomes an invitation to schedule — no extra back-and-forth required. Full setup instructions: How to add a booking link to your email signature.

More on email productivity: How to send your availability over email · How to schedule a meeting by email · Best AI email tools · Best email management tools · How to add a signature in Outlook · How to schedule an email in Gmail

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