How to Add Email Signature in Gmail (2026 Guide)

Your email signature is the last thing people see in every email you send. A well-designed signature makes you look professional, reinforces your brand, and gives recipients a quick way to reach you through other channels.

This guide walks you through setting up an email signature in Gmail in 2026 — on desktop and mobile. The whole process takes about two minutes.

Step 1: Create Your Email Signature

Before you can add a signature to Gmail, you need to create one. You have two options:

• Use a signature generator (recommended) — tools like DropSig let you design a professional signature with your photo, social links, and custom colors in under a minute. Then you copy it with one click.
• Build it manually in Gmail — Gmail has a basic built-in editor, but it is limited. You cannot add social icons easily, control layout precisely, or preview how it looks in different email clients.

We recommend using a generator because it gives you a polished, consistent result across Gmail, Outlook, and Apple Mail. Here is how to do it with DropSig:

Step 2: Add Your Signature in Gmail (Desktop)

Now that you have your signature copied, here is how to paste it into Gmail:

Important: If you skip the "Save Changes" button at the bottom, your signature will not be saved. This is the most common mistake people make.

Step 3: Set Your Default Signature

After creating your signature, you need to tell Gmail when to use it. Still in the Signature section of Settings:

1. Under "Signature defaults", find the dropdown for "For new emails use". Select the signature you just created.
2. Under "On reply/forward use", select the same signature (or choose a different one if you prefer a shorter signature for replies).
3. Scroll down and click "Save Changes" again.

If you have multiple Gmail aliases or "Send mail as" addresses, you can assign a different signature to each one using the dropdown next to each address.

Step 4: Add a Signature in the Gmail Mobile App

The Gmail mobile app on Android and iOS has a separate signature setting. The mobile signature field itself only supports plain text. However, as of April 2025, Gmail for Android automatically uses your formatted desktop signature (with images, links, and styling) when you leave the mobile signature field empty.

On Android

1. Open the Gmail app and tap the hamburger menu (three lines) in the top-left.
2. Scroll down and tap Settings.
3. Select your email account.
4. Tap Mobile Signature.
5. Type your signature text and tap OK.

On iPhone / iPad

1. Open the Gmail app and tap your profile icon in the top-right.
2. Tap Settings (or "Manage your Google Account" and then go to Gmail settings).
3. Select your email account.
4. Tap Signature settings and toggle Mobile Signature on.
5. Enter your signature text.

Tip: The mobile signature field only accepts plain text. But on Android, if you leave this field empty, Gmail will automatically use your formatted desktop signature (with images and links) in emails sent from the app. On iOS, this feature may not be available yet — use the "desktop site" option in your mobile browser as a workaround.

Tips for a Great Gmail Signature

A good email signature is concise, scannable, and professional. Here are guidelines based on what works:

• Keep it short. 3-4 lines of contact info is ideal. Name, title, company, phone, and one or two links. Nobody reads a 10-line signature.
• Use a professional photo or logo. A face photo builds trust. A company logo reinforces brand. Pick one — not both — to keep the signature compact.
• Add 2-4 social links, not 10. LinkedIn is almost always relevant. Add Twitter/X, GitHub, or your website if they are active and professional. Skip personal Instagram or TikTok unless you are in a creative field.
• Stick to web-safe fonts. Gmail strips custom fonts. Use Arial, Verdana, Georgia, or Trebuchet MS. DropSig uses web-safe fonts by default so your signature looks consistent everywhere.
• Do not use background images. Most email clients strip background images from signatures. Use solid colors or keep the background transparent.
• Test in dark mode. Many people use dark mode in Gmail. Avoid pure black text on transparent backgrounds — it becomes invisible. DropSig's dark mode preview lets you check this before copying.
• Keep the total width under 600px. Email clients have narrow content areas. A signature wider than 600 pixels may break or get cropped.

Troubleshooting Common Issues

Signature not showing on new emails

Go to Gmail Settings > Signature and check the "Signature defaults" section. Make sure your signature is selected in the "For new emails use" dropdown — it might be set to "No signature".

Signature looks different when received

Some email clients (especially Outlook) reformat HTML signatures. This happens because each client has its own rendering engine. To minimize issues:

• Use table-based layout (DropSig does this automatically).
• Use inline styles instead of CSS classes.
• Keep images hosted on a reliable server.

Images appear as attachments

This happens when images are embedded as base64 data instead of being hosted at a URL. Gmail sometimes converts pasted images to attachments. The fix: use a signature generator like DropSig that hosts your photo on a reliable CDN, so the image is always loaded via URL.

Formatting gets stripped when pasting

Make sure you are pasting with Ctrl+V / Cmd+V — not "Paste as plain text" (Ctrl+Shift+V). Gmail's signature editor accepts rich HTML when you paste normally.

"-- " separator appearing above signature

Gmail automatically adds a "-- " (two dashes and a space) separator above your signature. This is standard email convention and helps email clients identify and collapse signatures in threads. To remove it, go to Settings > General > Signature and enable the option "Insert this signature before quoted text in replies and remove the '--' line that precedes it."

Frequently Asked Questions