How to Add an Email Signature in Google Workspace (2026)

Setting this up just for you? Jump to adding a signature in Gmail on a work account.

Setting it up for the whole company? Jump to email signatures for all users.

Need to sign a document instead? That’s Google Workspace eSignature, a separate feature.

Signature Drift

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Why inconsistent Gmail signatures cost small teams more than they look

Inconsistent Gmail signatures are the default in Google Workspace, because every employee builds their own.

In WiseStamp’s 2026 survey of 515 organizations, 59.2% of companies with 2-25 employees said fewer than 25% of staff use their standard signature.

The upkeep isn’t free either. Signature changes cost about $4,050 per 100 employees a year, roughly 20 IT hours and 20 marketing hours (WiseStamp, 2026).

Two Signature Layers

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How do email signatures work in Google Workspace?

Email signatures in Google Workspace work in 2 separate layers. Each user writes a personal signature in Gmail settings. An admin can add a company footer from the Google Admin console with the Append footer setting. Both layers can appear on the same message, and neither one replaces the other.

Feature	User signature (Gmail settings)	Admin footer (Append footer)
Where it’s set	Gmail: Settings, See all settings, Signature	Admin console: Apps, Google Workspace, Gmail, Compliance
Who can edit it	The user, at any time	Admins with the Gmail Settings administrator privilege
Visible while writing	Yes	No
Personalized per person	Yes, typed by each user	No, identical for everyone in the organizational unit
Images	Upload, Google Drive, or web URL	Public web URL only, never Google Drive
Mail sent from Outlook or Apple Mail	Not added	Added, with formatting
Gmail mobile app	Used when no mobile signature is set	Added to outgoing mail

Sources: Google Workspace Admin Help, “Add a standard footer to outgoing emails” and “Set up Google Workspace user signatures in Gmail” (both updated October 9, 2026). Gmail Help, “Create a Gmail signature.”

No Google Workspace setting locks a user’s own signature. You can control the footer, but every employee can still rewrite the signature above it.

That’s how teams drift. One of our enterprise clients described their starting point to me bluntly.

They said: “It’s like the wild, wild west of email signatures currently, and we’re trying to rein that all in.”

User Signature

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How do you add a signature in Gmail on a Google Workspace account?

Adding a signature in Gmail on a Google Workspace account happens in the Signature section of Gmail’s desktop Settings page. Work and personal accounts use the same steps. A Gmail signature can hold up to 10,000 characters, and images count toward that limit (Gmail Help, 2026).

1. Open Gmail on a computer.
2. Click the Settings gear at the top right, then See all settings.
3. On the General tab, scroll to Signature and click Create new.
4. Name the signature (for example, “Work”) and click Create.
5. Type your name, title, phone, and links, and format them with the toolbar.
6. Under Signature defaults, choose it for For new emails use and On reply/forward use.
7. Scroll to the bottom and click Save Changes.

[Image: Gmail Settings page on a Google Workspace account with the Signature section open and a sample work signature]

Replies can stay clean. Leave On reply/forward use on “No signature” if long threads with repeated signatures bother you.

Using a personal @gmail.com address? The steps are identical, and our guide to adding a signature in Gmail covers the extras.

How do you change or delete a Google Workspace signature?

Changing a Google Workspace signature happens on the same Gmail Settings page where you created it. Open Settings, click See all settings, select the signature under Signature, edit the text box, and click Save Changes. To rename it, click Edit next to its name.

To remove a signature, select it, click Delete, confirm with Delete again, and click Save Changes.

Can you have multiple Gmail signatures in Google Workspace?

Gmail supports multiple signatures on a Google Workspace account. You can set different defaults for new emails and replies, switch signatures while writing with the Insert signature icon at the bottom of the compose window, and give each Send mail as address its own signature.

Each Send mail as address gets its signature from the drop-down above the signature box.

No drop-down? Check that the address is listed under Accounts and Import in Gmail settings.

Mobile Signature

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How do you add a Gmail signature on Android or iPhone?

A Gmail mobile signature is a separate, text-only signature that applies only to mail sent from the Gmail app on Android or iPhone. Google says that if you don’t create one, new messages from the app use the signature you set up on your computer (Gmail Help, 2026).

Android iPhone

How to add a Gmail signature on Android

1. Open the Gmail app.
2. Tap Menu at the top left.
3. Scroll to the bottom and tap Settings.
4. Choose your Google Workspace account.
5. Tap Mobile signature.
6. Type your signature and tap OK.

How to add a Gmail signature on iPhone or iPad

1. Open the Gmail app.
2. Tap Menu at the top left, then Settings.
3. Under Compose and Reply, tap Signature settings.
4. Turn on Mobile Signature.
5. Type your signature, then tap Back to save.

A mobile signature replaces your desktop one in the app. Leave it off if you want your formatted computer signature, logo included, on mail sent from your phone.

Signature Images

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How do you add a logo to a Google Workspace email signature?

A logo or image goes into a Google Workspace email signature through the Insert image button in Gmail’s signature editor. Gmail accepts an image from a web address, from My Drive, or uploaded from your computer. Google recommends 70-100 px high by 300-400 px wide, with a maximum of 100 x 1000 px (Google Workspace Admin Help, 2026).

1. Open Settings, click See all settings, and select your signature.
2. Click Insert image in the signature toolbar.
3. Choose My Drive, Upload, or Web Address (URL).
4. Select the image, click it to pick a display size, and click Save Changes.

[Image: Gmail Insert image dialog showing the My Drive, Upload, and Web Address (URL) tabs]

A few rules decide whether recipients actually see it:

• Drive images must be shared publicly, or recipients get a broken image (Google Workspace Admin Help)
• Images count toward the 10,000-character limit, so resize large files if Gmail shows an error
• A signature made of 1 big image can’t be clicked, often gets blocked, and screen readers can’t read it

Why is a Gmail signature image not showing in Google Workspace?

A Gmail signature image usually fails to show in Google Workspace because the Drive file isn’t public, or because the organization blocks sharing Drive files outside the domain. Oversized source images and recipients who block remote images cause most of the remaining cases.

• Domain sharing is off: an admin with the Drive and Docs administrator privilege opens Apps, Google Workspace, Drive and Docs, Sharing settings, sets Sharing outside of your organization to On, and allows link sharing
• The file isn’t public: share it as “Anyone with the link”
• The image is too large: resize it to about 300-400 px wide and insert it again
• The recipient blocks images: nothing to fix on your side, so keep key details in text

Html Signatures

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How do you add an HTML signature in Google Workspace?

An HTML signature in Google Workspace is added by pasting a rendered design into Gmail’s signature box, not by pasting code. Gmail has no HTML source field. You open the finished signature in a browser, copy what you see, and paste it into Gmail settings.

1. Build the signature in a tool such as the free Gmail signature generator.
2. Open the finished signature or its preview in Chrome.
3. Select the whole signature and copy it with Ctrl+C or Cmd+C.
4. Paste it into the Gmail Signature box and click Save Changes.

Tables, links, and hosted images usually survive the paste. Custom fonts, CSS layouts, and images stored on your computer usually don’t.

For a deeper walkthrough, see our guide to creating a Gmail HTML signature.

Copy-paste is also where team rollouts quietly fall apart. Sarit Rosenthal-Aviram, who heads brand and product marketing here at WiseStamp, sees it all the time.

As she puts it: “If email signatures rely on copy-paste… they usually end up inconsistent.”

Company-Wide Signature

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How do you set an email signature for all users in Google Workspace?

Google Workspace gives admins 2 native ways to set an email signature for all users. Append footer in the Google Admin console adds 1 identical footer to outgoing mail. The Gmail API, usually driven by the free GAM tool, writes a personalized signature into each user’s Gmail settings.

A third route, a third-party signature tool, is covered in the section on third-party tools.

How do you add a company-wide footer with Append footer?

Append footer is a Google Admin console setting that adds the same footer text to outgoing mail for everyone in an organizational unit. Setting it up requires the Gmail Settings administrator privilege. Google says changes “can take up to 24 hours but typically happen more quickly” (Google Workspace Admin Help, 2026).

1. Sign in to the Google Admin console.
2. Go to Menu, Apps, Google Workspace, Gmail, Compliance.
3. Select the organizational unit on the left. The top level applies to everyone, and child units inherit it.
4. Scroll to Append footer and click Configure (or Add another rule if a rule exists).
5. Name the rule and enter the footer with the editor’s formatting tools.
6. Tick the option to append the footer to internal messages if you want it on internal mail too.
7. Click Save, then send a test message to an address outside your domain.

[Image: Append footer setting in the Google Admin console for a company-wide email signature]

The default covers external mail only. Internal messages get the footer only when you tick that option in step 6.

What can the Google Workspace Append footer do and not do?

The Google Workspace Append footer adds formatted text and hosted images to outgoing mail, including mail from aliases and from Outlook or Apple Mail. It can’t personalize, accept HTML, or use Google Drive images. Employees can’t edit it, and it applies identically to everyone in the organizational unit.

• Text limit: up to 10,000 characters
• No HTML: Google states “the text editor doesn’t support HTML content”
• Public URL images only: “Images stored in Google Drive can’t be used in your footer”
• Plain-text messages: get a plain-text footer with no images or formatting
• Aliases and other clients: covered, with formatted footers on Outlook and Apple Mail sends
• Client-side encryption: not supported on messages encrypted with Google Workspace CSE
• Invisible while writing: employees can’t see, change, or remove the footer
• Same for everyone: no names, titles, or phone numbers per person

Source: Google Workspace Admin Help, “Add a standard footer to outgoing emails” (updated October 9, 2026).

Different departments need separate organizational units, each with its own Append footer rule.

[Image: received email showing a user’s Gmail signature with the Append footer below it]

Can a super admin edit a user’s signature in the Google Admin console?

Google’s admin documentation lists no per-user signature field in the Google Admin console. Its documented options for signatures are the Append footer setting, the Gmail API, and apps from the Google Workspace Marketplace. Some guides describe a signature field in a user’s Admin console profile, but Google doesn’t document one.

To change 1 employee’s signature, the employee edits it in Gmail, or an admin sets it through the Gmail API.

To change everyone’s, use Append footer for a shared block or GAM for personalized signatures.

How do you push personalized Gmail signatures to every user with GAM?

GAM is a free, open-source command-line tool that manages Google Workspace through Google’s APIs, including each user’s Gmail signature. You build 1 template with placeholders. GAM then fills in every employee’s name, title, and phone from the Google directory and writes the result into their Gmail settings.

1. Install GAM7. On macOS or Linux, run the bootstrap script. On Windows, run the installer from the GAM releases page.

bash <(curl -s -S -L https://git.io/gam-install)

2. Authorize GAM. Run gam create project, then gam oauth create, then gam user admin@yourdomain.com update serviceaccount. Approve the scopes at Security, API Controls, Domain-wide Delegation, then confirm with gam user admin@yourdomain.com check serviceaccount.

3. Build a template. Create the signature in a test user’s Gmail with placeholders such as {FirstName} and {Phone}, then export it:

gam redirect stdout ./SigTemplate.html user testuser@yourdomain.com show signature template

4. Push it to everyone. List email addresses in a Users.csv file, then map each placeholder to a directory field:

gam csv Users.csv gam user "~email" signature htmlfile SigTemplate.html replace FirstName field:name.givenname replace LastName field:name.familyname replace Phone field:phone.value.type.work

5. Back up and schedule. Save current signatures first with gam redirect csv ./SignatureBackup.csv all users print signature. Then schedule the push with cron, Task Scheduler, or Cloud Scheduler, because nothing re-runs on its own.

Sources: GAM wiki, “Downloads-Installs,” “How to Install GAM7,” and “Users Gmail Send As Signature Vacation.”

What are the limits of GAM and the Gmail API for signatures?

GAM and the Gmail API set signatures within documented limits. Google’s API reference says the signature is “included in messages composed with this alias in the Gmail web UI” and “added to new emails only.” Updating non-primary addresses requires domain-wide delegation (Gmail API reference, April 2026).

• Phones need a test: Gmail Help says the app uses the computer signature only when no mobile signature is set, and about 55% of email opens happen on mobile (Litmus, 2024-2025)
• New emails only: Google documents no separate reply signature through the API
• No scheduler: new hires and title changes wait for the next scheduled run
• No lock: employees can overwrite the pushed signature in Gmail settings
• No undo: your backup file is the only rollback

GAM fits a technical admin with a small, stable team. Once marketing wants banners swapped every month, every change becomes a ticket for that admin.

I’ve heard IT admins put the endpoint plainly: “We would have to hire someone just to do email signatures.”

Do Gmail DLP header and footer messages replace an email signature?

Gmail DLP header and footer messages don’t replace an email signature. Since December 11, 2025, data loss prevention (DLP) rules can add a header or footer message to outbound Gmail based on data classification labels. The feature supports compliance labeling and carries no personal details (Google Workspace Updates, 2025).

It’s available only on these editions:

• Enterprise: Standard and Plus
• Education: Fundamentals, Standard, Plus, and the Teaching and Learning Upgrade
• Frontline: Standard and Plus
• Cloud Identity Premium: with a Workspace plan that includes Gmail

Third-Party Tools

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How do third-party signature tools work with Google Workspace?

Third-party signature tools connect to Google Workspace with 1 admin authorization, import employee details from the Google directory, and write each person’s signature for them. They cover what the native routes leave open: personalization without scripts, locked branding, automatic updates, and ready signatures for new hires.

What a signature tool adds over native Google Workspace:

• Personalization from the directory, with no scripting
• Locked design, with fields employees can still edit
• Templates by group or department
• Automatic setup for new hires and removal for leavers
• Banner campaigns that marketing can change without IT

WiseStamp deploys personalized, locked Gmail signatures to every Google Workspace user from 1 dashboard, using directory data from Google. Admins install it once from the Google Workspace Marketplace, and it can sync employee details daily.

WiseStamp offers 2 deployment modes for Google Workspace:

• Auto-Inject (client-side): writes each signature into the employee’s Gmail settings, with no change to mail flow
• Server-side Gmail routing: adds the signature in transit, so it appears on mail from every device, mobile included

Auto-Inject is available from the Basic plan, at $19 a month plus $1 per employee, billed annually. Server-side routing needs the Platform or Enterprise plan (see WiseStamp pricing).

I liked how Brian A., an IT professional, framed the gap in his G2 review.

He wrote that WiseStamp “handles bulk signature updates, templates, and standardization, which Gmail doesn’t provide natively.”

Here’s how Google Workspace signature management works with WiseStamp, from directory sync to locked templates.

Want to see other options first? Compare the best Google Workspace email signature tools side by side.

A signature tool has trade-offs too:

• Another vendor: you take on a renewal and a security review
• Server-side routing changes mail flow, which some security teams won’t approve, while Auto-Inject leaves mail flow alone
• Nobody owning it internally is the most common way a signature tool stalls

Method Comparison

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Which Google Workspace signature method should you use?

The right Google Workspace signature method depends on team size, who changes signatures, and whether mail goes out from phones. Gmail settings suit individuals. Append footer suits a fixed legal line, GAM suits a technical admin with a stable team, and a third-party tool suits teams that want everything automated.

Comparison point	Gmail settings	Append footer	Gmail API with GAM	Third-party tool (WiseStamp)
Best for	Individuals and very small teams	1 legal or brand footer	Technical admins with stable teams	Teams that want it hands-off
Personalized per user	Yes, typed by each user	No	Yes, from directory fields	Yes, from directory sync
Visible while writing	Yes	No	Yes, in Gmail web	Yes with Auto-Inject, added in transit with server-side
Employees can change it	Yes	No	Yes, until the next run	Design fields are locked in WiseStamp
Gmail mobile app	Mobile signature, or computer signature if none	Yes	Computer signature if no mobile signature is set, test it	Yes with server-side routing
New hires covered	No, each user sets it up	Yes, by organizational unit	Only on the next scheduled run	Yes, on directory sync
Marketing can change banners	No	No	No	Yes, without IT
Skills needed	None	Admin console access	Command line and scripting	Admin console access
Ongoing effort	Per user	Low	Script upkeep and scheduling	Low
Cost	Included in Workspace	Included in Workspace	Free tool, plus admin time	From $19/month + $1 per employee

Pick by your situation:

• Just you or a handful of people: Gmail settings plus the free generator
• 1 required legal line: Append footer
• Technical admin, rare changes: GAM on a schedule
• Personalized, branded, and hands-off: a third-party tool such as WiseStamp

Scale changes the answer. Google Workspace is the email platform for 54.9% of 2-25 employee companies but 31.7% of companies over 1,000. Among those large companies, 70.7% have a standardized signature (WiseStamp, 2026).

Native Limits

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What are the limitations of Google Workspace email signatures?

Google Workspace email signatures have 7 native limits. The Admin console has no per-user signature field, Append footer is static and identical, and nothing locks a user’s own signature. Anything personalized at scale needs scripting through the Gmail API.

• No per-user signature field in the Google Admin console
• Static Append footer: identical text, no HTML, no Google Drive images
• No lock on a user’s own Gmail signature
• Department variation needs separate organizational units
• API-set signatures documented for Gmail web and new emails only
• No automatic updates from directory changes without a scheduled script
• No preview or analytics for signatures across the domain

Each manual update costs about $1,000 in operational time, based on 20 IT and 20 marketing hours across 4 updates a year (WiseStamp, 2026). Teams that change signatures often hit that number fast.

If 2 or more of these limits sound familiar, the third-party route is worth a look.

Next Steps

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Next steps for your Google Workspace email signature

Your next step for a Google Workspace email signature depends on who it’s for. A personal signature is a few clicks in Gmail settings. A company-wide signature starts with a decision: 1 identical footer, scripted personalization with GAM, or a third-party tool that keeps every signature updated for you.

1. Set your own signature first in Gmail under Settings, See all settings, Signature, so you have a working reference design.
2. List what must appear on every employee’s mail, such as the logo, a legal disclaimer, or a booking link.
3. Decide who will change signatures after launch, and how often. Rare changes suit Append footer or GAM.
4. Check Google’s Admin Help pages and their update dates before you change anything in the Admin console.
5. Compare the third-party route if signatures change often or you need them personalized without scripts.

If you’re weighing that last option, read how Google Workspace signature management with WiseStamp handles directory sync and locked templates.

To compare it with other tools first, see the best Google Workspace email signature tools.