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How to Change Your Email Signature in Gmail

Changing a Gmail signature takes only a few steps, but desktop and mobile signatures are managed differently. Follow the instructions for your device below, then see how TrustNinja can turn a standard business signature into a recurring customer-feedback touchpoint.

Gmail settings open on the Signature section on desktop, next to a business email signature with a TrustNinja feedback survey

Quick Answer

How Do I Change My Email Signature in Gmail?

On a computer, open Gmail, select Settings then See all settings, stay under General and scroll to Signature. Select the signature you want to edit, make your changes, choose the appropriate defaults for new emails and replies if needed, then select Save Changes at the bottom. Gmail also supports separate mobile signatures in the Android and iPhone or iPad apps.

The Problem

Why Gmail Signature Settings Can Be Confusing

Gmail supports multiple signatures and separate mobile settings, so changing a signature on one device does not always produce the result a user expects everywhere. Business teams can also create inconsistent signatures when every employee manages formatting independently.

Desktop Gmail and the Gmail mobile apps use different signature settings.

Gmail can store multiple signatures and different defaults for new messages versus replies and forwards.

Accounts with multiple Send mail as addresses can assign different signatures to each sending address.

Mobile signatures may override the desktop signature when sending from the Gmail app.

Images can display incorrectly if they are too large or have unsuitable sharing permissions.

Staff signatures can become inconsistent in wording, branding and customer calls to action.

A standard signature provides contact information, but it does not create a structured customer-feedback process on its own.

Why It Matters

Why a Good Email Signature Matters

Create a Consistent Identity

A clear business signature helps recipients identify the sender, company, role and relevant contact details.

Make Useful Actions Easy

A signature can provide direct access to a website, telephone number, booking page or other appropriate customer action.

Create an Everyday Touchpoint

Customer-facing teams already send routine Gmail messages. A carefully designed signature can use those existing interactions to support useful next steps.

Support Feedback and Reputation

TrustNinja's Email Signature Survey can add a feedback opportunity to everyday communication, helping make customer feedback more consistent without a separate survey email every time.

On Mobile

Changing Your Gmail Signature on Mobile

Gmail keeps separate signatures for its mobile apps, so set these on the device itself.

Gmail on Android

Step 1: Open the Gmail app.
Step 2: Tap Menu, then Settings.
Step 3: Choose the Google Account to update.
Step 4: Tap Mobile signature.
Step 5: Enter or edit the signature, then tap OK.

If you do not set a mobile signature, new messages can use your desktop signature.

Gmail on iPhone or iPad

Step 1: Open the Gmail app.
Step 2: Tap Menu, then Settings.
Step 3: Under Compose and Reply, tap Signature settings.
Step 4: Turn on Mobile Signature.
Step 5: Add or edit the signature, then go back to save.

With multiple accounts, update the setting for each account separately.

Using Multiple Signatures

Gmail on desktop supports multiple named signatures. Set one default for new emails and another for replies or forwards, and use the Insert signature control to switch while composing. Google currently allows signatures of up to 10,000 characters.

How It Works

How to Change Your Email Signature in Gmail (Desktop)

1

Open Gmail in Your Browser

Open Gmail on a computer so you can access the full desktop settings.

2

Open Settings

At the top right, select Settings, then See all settings.

3

Find the Signature Section

Under the General tab, scroll down to the Signature section.

4

Edit Your Signature

Select the signature you want to edit and update the text, formatting, links or image.

5

Save Your Changes

Review the defaults for new emails and replies or forwards, then scroll to the bottom and select Save Changes.

The TrustNinja Solution

Turn Your Gmail Signature Into a Customer Feedback Tool

TrustNinja extends the role of a standard business signature by adding a feedback opportunity to emails your team already sends. Add a concise feedback prompt to the signature so customer feedback becomes part of normal communication rather than relying only on separate survey or review-request campaigns.

Email Signature Survey

What it is
A customer feedback prompt embedded in a business email signature.
How it works
Customers can respond from routine email communication.
Business outcome
Creates an ongoing feedback channel across everyday interactions.
Learn more about Email Signature Survey

Review Invitations

What it is
A structured process for inviting genuine customers to share feedback or reviews.
How it works
Review opportunities are added to appropriate customer touchpoints.
Business outcome
Reduces reliance on staff remembering one-off requests.

QR Code Reviews

What it is
A scannable feedback and review touchpoint for physical environments.
How it works
Customers scan a QR code from receipts, invoices, tables or printed material.
Business outcome
Complements Gmail-based feedback with an in-person option.
Learn more about QR Code Reviews

Review Monitoring

What it is
An organised approach to customer review and feedback activity.
How it works
Review and feedback activity is tracked in one place.
Business outcome
Helps the business keep track of sentiment and reputation issues.

Customer Feedback

What it is
Structured information from customers about their experience.
How it works
Feedback is collected across everyday interactions.
Business outcome
Provides useful input for service improvement.

Reputation Management

What it is
The ongoing management of customer feedback and online reviews.
How it works
Feedback, reviews and responses are handled as one process.
Business outcome
Makes reputation management more systematic.
TrustNinja mascot looking excited with 5 multicoloured stars above them

Who This Is For

Who Can Use a TrustNinja Gmail Email Signature Survey?

The Email Signature Survey is particularly relevant to businesses whose teams communicate regularly with customers through Gmail or Google Workspace. The more customer conversations handled by email, the more opportunities a consistent signature can create for collecting feedback.

Service-Based Businesses

Add feedback to appointment communication, quotations, project updates and support emails.

Hospitality and Accommodation

Use booking, guest-relations and post-stay communication as appropriate feedback touchpoints.

Trades and Contractors

Add feedback opportunities to quotations, scheduling, invoices and completed-job communication.

Professional Service Providers

Use a professional Gmail signature to collect feedback from appropriate client interactions.

Retail and E-commerce Teams

Add feedback to customer-service and post-purchase communication.

Customer Support Teams

Create a persistent feedback opportunity after customer-service conversations.

Compare

Standard Gmail Signature vs TrustNinja Email Signature Survey

Standard Gmail Signature TrustNinja-Enhanced Signature
Customer action Usually a website, booking or social link Can include an ongoing customer-feedback action
Feedback collection Usually requires a separate follow-up Feedback opportunity appears in routine emails
Consistency Depends on each employee's setup Can be part of a standardised feedback workflow
Review management Not built into Gmail itself Connects email interactions to a wider TrustNinja review process

FAQs

Frequently Asked Questions

On a computer, open Gmail and select Settings then See all settings. Under General, scroll to Signature, choose the signature you want to edit, make your changes and select Save Changes at the bottom. You can also choose separate defaults for new emails and replies or forwards.

Open the Gmail app, tap Menu then Settings, choose the Google Account, then tap Mobile signature. Enter or edit the signature text and tap OK. Google treats this as a mobile-app signature for messages sent from the Gmail app.

Open the Gmail app, tap Menu then Settings, then under Compose and Reply select Signature settings. Turn on Mobile Signature, edit the signature and go back to save. If you use multiple accounts, update the setting for each account separately.

Yes. Gmail on desktop supports multiple named signatures. You can select defaults for new messages and replies or forwards, and you can switch signatures while composing an email using the Insert signature control.

Gmail has separate mobile-signature settings. If you create a mobile signature in the Gmail app, it can differ from the signature configured on desktop. Check the signature setting for the specific mobile account you are using.

Yes. Gmail supports images in signatures. Google recommends roughly 70 to 100 pixels high by 300 to 400 pixels wide for signature images. If an image displays incorrectly, check its size, upload method and sharing permissions.

Common causes include formatting issues, oversized images, plain-text mode, image-sharing permissions or Gmail trimming the signature beneath the message. Google provides troubleshooting steps for each of these issues in Gmail Help.

Yes. A feedback link or survey can be included in a business email signature. TrustNinja's Email Signature Survey is designed for this use case, turning routine Gmail communication into recurring customer-feedback opportunities.

A signature can create a convenient feedback or review touchpoint because it appears in routine customer communication. Public review requests should remain neutral and follow the relevant platform policies, so do not use incentives or manipulate which customer experiences are publicly reviewed.

Make Your Gmail Email Signature Work Harder

Once your Gmail signature is set up correctly, it can do more than display contact details. TrustNinja helps businesses add customer feedback to everyday email communication through an Email Signature Survey that supports a wider review-management and reputation strategy.

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