Can I paste HTML into Gmail?
Yes, but Gmail may simplify some styling. Keep the design simple and test it after pasting.
HTML signatures need simple markup
Email clients are not modern web browsers. Outlook, Gmail, and Apple Mail all treat HTML differently, so simple layouts work better than complex designs.
Keep the signature compact, avoid scripts, and use inline styles when possible.
Use images carefully
A handwritten signature image can make an email feel personal, but remote images may be blocked. If reliability matters most, insert the PNG directly in the email client.
For company logos or profile photos, use stable HTTPS image URLs and keep file sizes small.
Test before sending
Send test emails to Gmail, Outlook, and a mobile device. Check spacing, image size, link behavior, and whether the signature makes replies too long.
Common Questions
Can I paste HTML into Outlook?
Yes, but Outlook desktop has limited HTML support. Simple layouts and image signatures are more reliable.