How to Add a Gmail Signature in Replies (2026 Guide)

Adding a Gmail signature in reply trips up plenty of users because Gmail hides the toggle three menus deep, then defaults to placing your signature beneath the quoted message where nobody scrolls. The fix takes about four minutes once you know where to look. This guide walks through the desktop setup, the separate workflow for the Android and iOS apps, and what to do when your signature stops showing up in replies.

#How Do You Add a Signature That Shows Up in Gmail Replies?

The signature lives in Settings > General > Signature. After you create one, the step most guides skip is checking “Insert this signature before quoted text in replies and remove the ’—’ line that precedes it.” Without that checkbox, Gmail still attaches the signature, but buries it at the bottom of the quoted thread where recipients rarely scroll.

When we tested this on a fresh Gmail account on May 8, 2026, the signature only appeared above the quoted text after the checkbox was ticked and the Settings page was saved. Refreshing the compose window alone didn’t pick up the change.

Here’s the full path for first-time setup:

1. Open Gmail in your browser and click the gear icon in the top right.
2. Click “See all settings.”
3. On the “General” tab, scroll to the “Signature” section.
4. Click ”+ Create new” and give the signature a name. Gmail lets you store multiple.
5. Type or paste the signature body. Use the toolbar for font, color, bullets, hyperlinks, and image insertion.
6. Under “Signature defaults,” choose which signature applies to “FOR NEW EMAILS USE” and “ON REPLY/FORWARD USE.”
7. Tick “Insert this signature before quoted text in replies and remove the ’—’ line that precedes it.”
8. Scroll to the bottom and click “Save Changes.”

According to Google’s Gmail signature help page, each Gmail account can store multiple signatures with separate defaults for new mail and for replies or forwards. This is handy if you send from both a personal address and a work alias through the same inbox. If you’re also setting up account recovery options at the same time, our Gmail account recovery guide covers the verification steps.

#Setting Up Your Gmail Signature on Desktop

Once you reach the Signature panel, the editor behaves like a small rich-text document. Bold, italic, underline, font family, size, color, alignment, lists, indent, link, and image controls sit along a single toolbar at the top.

A few rules from our testing on Chrome 132 and Firefox 134:

• Keep your signature short. Recipients on Outlook and Apple Mail often see long signatures clipped or thrown into a “[message truncated]” warning. Five lines is the sweet spot.
• The ”—” dashes that Gmail used to inject before signatures are a holdover from plain-text email conventions. Modern clients don’t rely on them, but Gmail still adds them unless you tick the checkbox above.
• Font and color choices stick across replies. When we switched themes mid-thread, the signature held its brand colors without restyling.

If you manage multiple addresses with Gmail’s Send mail as feature, point each address to the right signature using the “Signature defaults” dropdowns at the top of the Signature panel. Otherwise Gmail falls back to the default signature regardless of which address you send from, which can cause embarrassing mix-ups where work signatures land on personal emails or vice versa.

Wikipedia’s signature block entry confirms that the ”— ” delimiter dates back to RFC 3676 plain-text email conventions and was originally designed for Usenet newsgroup software. Modern HTML clients like Outlook 365, Apple Mail, and Yahoo Mail no longer rely on the dashes to detect a signature boundary. That’s why Gmail’s checkbox to remove the dashes is mostly visual cleanup rather than a compatibility fix.

For people wrestling with delivery issues alongside signature setup, our Gmail not sending emails troubleshooting guide covers the SMTP, DNS, and Workspace gotchas that often surface during the same configuration session.

#What If Gmail Skips the Signature in Replies?

A signature that works for new emails but vanishes from replies is almost always a toggle problem, not a bug. Three causes account for nearly every case we’ve seen:

1. The “Insert this signature before quoted text” checkbox is off. Gmail still applies the signature, but tucks it after the quoted thread. Recipients only see it if they expand the full message.
2. The “On reply/forward use” dropdown is set to “No signature.” This dropdown is separate from the new-mail dropdown, so it’s easy to miss. Switch it to your signature name and save.
3. A Workspace admin has overridden personal signatures. Google’s Workspace admin documentation states that administrators can append a footer to all outbound mail and even disable user-level signature edits. If you’re on a school or company account, ask your IT contact.

I tested all three scenarios on May 9, 2026, using a personal Gmail and a Workspace trial account. In each case, the fix was changing the matching toggle and clicking Save Changes at the bottom of the Settings page. Gmail doesn’t auto-save Settings, so if you close the tab too quickly, your edits revert without warning.

One more thing: confidential mode strips signatures from the preview, but the delivered email keeps them.

#Adding a Gmail Signature on Android

The Gmail Android app keeps a completely separate signature called Mobile Signature. It doesn’t sync from the desktop, doesn’t honor the “before quoted text” checkbox, and only supports plain text — no logos, no formatted links, no images.

Here are the steps to set it up:

1. Open the Gmail app on your Android phone or tablet.
2. Tap the three-line menu icon in the top left.
3. Scroll down and tap “Settings.”
4. Tap the Google account you want to set up.
5. Tap “Mobile Signature.”
6. Type your signature text and tap “OK.”

The signature now appears in every email sent from that account in the app, including replies and forwards. It doesn’t appear in the desktop Gmail interface or in the Gmail iOS app. Each platform keeps its own signature.

In our testing on a Samsung Galaxy S24 running Android 15, the change took effect immediately without a restart of the app. Switching between work and personal accounts in the side panel correctly loads each account’s signature, so you don’t need to swap settings manually when replying from a different inbox.

If you also use Gmail through a third-party client like Thunderbird, our Thunderbird Gmail setup walkthrough covers the IMAP and OAuth configuration where signatures get attached at the client level rather than at Google’s servers.

#Adding a Gmail Signature on iPhone or iPad

The iOS workflow mirrors Android with one extra wrinkle: the Gmail app on iOS has its own Mobile Signature field, but it also doesn’t honor HTML or images. If you want a rich signature on iPhone, your only option is to send through the desktop Gmail web interface or through Apple Mail with a Gmail account configured via IMAP.

Here’s how to set the plain-text Mobile Signature on iOS:

1. Open the Gmail app on your iPhone or iPad.
2. Tap the three-line menu icon in the top left.
3. Scroll down and tap “Settings.”
4. Tap the Gmail account you want to configure.
5. Tap “Signature settings.”
6. Toggle “Mobile Signature” on and type your signature.
7. Tap the back arrow to save.

We tested this on an iPhone 15 Pro running iOS 18.3. The signature attached correctly to new emails and replies sent from the Gmail app, but didn’t appear when forwarding through Apple Mail using the same Gmail account.

That confirms what Google’s mobile mail support describes: the Mobile Signature field belongs to the Gmail app, not the Google account.

If you also need to recover lost mail along the way, see our guide on recovering deleted Gmail messages.

#Adding Images, Logos, and Links to Your Signature

A text-only signature works fine, but a logo plus social icons makes the signature feel like a business card. Gmail accepts images through three sources: your Google Drive, a local file upload, or a public URL.

The image dimensions matter. Large logos break responsive layouts on phones and inflate the size of every email you send. We’ve found a logo around 150 to 200 pixels wide and 50 to 80 pixels tall hits the right balance — visible without dominating the message.

For hyperlinks:

1. Highlight the text or icon you want to link.
2. Click the link icon (looks like a chain link) in the signature toolbar.
3. Paste the URL and click OK.

The most common image mistake is uploading from Google Drive without making the file public. If the file is set to “Restricted,” recipients see a broken image icon because their email clients can’t authenticate to your Drive. Change the sharing to “Anyone with the link can view” before saving the signature.

Adobe’s email design guidance recommends stacking signature blocks vertically rather than spreading them across a wide horizontal row, because mobile clients collapse multi-column layouts and rearrange elements unpredictably.

If you need to send long messages with both your signature and attachments through Gmail, our BCC and undisclosed recipients guide covers the privacy-friendly addressing setup that pairs naturally with a polished signature.

#Bottom Line

For most users, the fix for “Gmail signature not showing in replies” is two clicks: open Settings > General > Signature, tick the “Insert this signature before quoted text” checkbox, and save. The desktop change doesn’t propagate to your phone, so set the Mobile Signature separately on Android and iOS if you want consistent branding across devices.

Skip the temptation to paste a giant HTML signature with multiple columns. A short five-line text signature with a small logo renders correctly on every major mail client and looks professional without overwhelming the message.

#Frequently Asked Questions