Help center

How can we help?

Setup guides, account, billing and more.

Getting started

Create your first signature

From a blank canvas to a finished signature in minutes.

Install your signature

Install in Outlook (Windows)

Paste your HTT signature into desktop Outlook.

Install in Gmail

Add your HTT signature to Gmail in the browser.

Install on Apple Mail & iPhone

Use your HTT signature on macOS and iOS.

Deploy across your company (Microsoft 365)

Guidance for M365 administrators.

Account & sign-in

Sign in with Google / Microsoft

Use your work account for one-click sign-in.

Plans & billing

Upgrade & payment (VietQR)

How to buy seats and when they take effect.

Still need help?