When you first download Texpad it will start in a two week trial period during which it will be fully functional. If you wish to continue using Texpad, please buy a license from our website.

## Purchase certificate

When you buy a license for Texpad you will be presented with a purchase certificate. To attach this license to Texpad double click it, or drag it to the dock icon.

When Texpad first sees a purchase certificate, it will verify that license with our server. You will need to be online for this operation, but from then on Texpad will run offline.

## Switching from Mac App Store Texpad

If you have already purchased Mac App Store Texpad, you can swap to the Texpad distributed through texpadapp.com for free at any point.

In order to do this please follow the instructions at www.texpadapp.com/upgrade-mas-tposx. You will need to download the upgrade assistant, which will verify the Mac App Store receipt and instruct our license server to issue you a purchase certificate.