Is this guide for Outlook desktop or the web app?

This guide is for the Outlook web app (browser version). For the Windows desktop app, see our Outlook 365 Desktop guide.

Can I have different signatures for different accounts?

Yes, if you have multiple accounts in Outlook web, each account has its own signature settings. Switch accounts and repeat these steps for each.

Does Outlook web support HTML signatures?

Yes, Outlook web supports HTML signatures including images and links. However, some advanced CSS is stripped. DropSig templates are optimized to work within these limits.

Why is my logo blurry in Outlook?

Outlook may scale images differently. Use an image that's at least 2x the display size (e.g., 300px wide image displayed at 150px) for sharp results on high-density screens.

How to Add an Email Signature in Outlook (Web Version)

This guide covers Outlook on the web — the browser version available at outlook.live.com and outlook.office.com. If you use the desktop app on Windows, see the Outlook 365 guide instead. Adding your signature takes about 2 minutes.

Before you start

You'll need a signature to paste. Already have one? Skip to step 1.

Create your signature first →

Step-by-step setup

Open Outlook in your browser. Click the gear icon in the top-right corner to open the Settings panel.

At the bottom of the Settings panel, click "View all Outlook settings". A full-page settings dialog will open.

In the settings dialog, select "Mail" from the left sidebar, then click "Compose and reply".

Scroll down to the "Email signature" section. You'll see a text editor where you can create your signature.

Go to the DropSig editor and click "Copy Signature". This copies your formatted signature to the clipboard.

Click inside the Outlook signature editor and paste (Ctrl+V on Windows, Cmd+V on Mac). Your signature should appear with formatting intact.

Pro tip: If formatting looks off, try pasting into the editor using the toolbar's HTML source option if available, or use a plain-text fallback.

Check both "Automatically include my signature on new messages I compose" and "Automatically include my signature on messages I forward or reply to".

Click "Save" at the bottom of the section. Compose a new email to verify your signature appears.

Common issues

Signature not appearing automatically

Make sure you checked both auto-include checkboxes in the Compose and reply settings. Also try refreshing Outlook after saving.

Read the full fix →

Images not displaying in the signature

Outlook web requires images to be hosted at a public URL. DropSig-hosted images work automatically. Local file paths will not work.

Formatting is lost after pasting

Try using a different browser or clearing your browser cache. Chrome and Edge typically give the best results with Outlook web's editor.

FAQ

Need a signature to paste?

Create one free in 30 seconds →

Free Outlook Signature Generator Outlook signature not showing Add logo to email signature Html email signature

Last verified: March 2026