Download your signature as an HTML file, open it in any browser, then copy and paste the rendered result into your email client.
✓ HTML copied to clipboard successfully.
✓ Signature downloaded — open the file in any browser to install it.
Works for Gmail, new Outlook (Microsoft 365), Outlook Web (OWA), and most modern email clients.
1Click Download Signature above. Your browser saves a file called my-signature.html.
2Open that file in any browser (Chrome, Firefox, Safari, Edge). You will see your signature rendered exactly as it appears in email.
3Press Ctrl+A (Windows) or Cmd+A (Mac) to select everything. Do not drag with your mouse — Ctrl+A captures all underlying formatting that mouse selection misses.
4Press Ctrl+C (Windows) or Cmd+C (Mac) to copy.
5Open your email client signature settings and paste into the editor:
Gmail: Settings gear → See all settings → Signature → Create new → paste → Save Changes.
New Outlook desktop (Microsoft 365): Settings gear → Accounts → Signatures → New signature → paste → Save.
Outlook Web (OWA) at outlook.office.com: Settings → Mail → Compose and reply → New signature → paste → Save.
6Send yourself a test email. The composer preview may look plain or stripped — that is normal. The received email is what matters and will render the full formatted signature.
Classic Outlook only. Check your Start menu for Outlook (classic). If you have the new Microsoft 365 Outlook, use the Universal method tab instead.
1Click Copy HTML to Clipboard above. Open Notepad (not Word), paste, and save as mysignature.htm — set Save as type to All Files so it saves as .htm not .txt.
2Press Win+R, type shell:signatures and press Enter. This opens the Signatures folder directly. If it fails, navigate to C:\Users\[your name]\AppData\Roaming\Microsoft\Signatures\ — create the folder if it does not exist.
3Copy your mysignature.htm file into that folder.
4Open classic Outlook → File → Options → Mail → Signatures → click New → name it mysignature (must match the filename exactly, without the .htm extension) → OK.
5Set as default for new messages and replies → click OK. Send yourself a test email to confirm.
Apple Mail requires editing the signature file on disk. The app must be fully quit before you edit — not just the window closed — or it will overwrite your changes on next quit.
1Open Mail → Settings → Signatures. Select your account, click +, type a placeholder like REPLACEME. Close Settings.
2Quit Mail completely (Cmd+Q). Mail writes the signature file to disk on quit, not before. This step is mandatory.
3In Finder press Cmd+Shift+G and navigate to ~/Library/Mail/. Open the versioned folder (V9, V10, etc.) → MailData → Signatures.
4Find the .mailsignature file containing your placeholder text. Open it in TextEdit with plain text mode on: Format → Make Plain Text.
5Find the <body> tag. Replace everything between <body> and </body> with your copied HTML. Save.
6Reopen Mail and send yourself a test email. Also test in dark mode on an iPhone — Apple Mail is aggressive about color inversion and it is better to catch it now.
