This plugin requires a [Quaderno](https://quaderno.io) account.
Quaderno Checkout is an embeddable payment form for desktop, tablet, and mobile devices. It works within your site—customers can pay instantly, without being redirected away to complete the transaction.
Quaderno Checkout **works with Stripe, PayPal, Braintree, and Paymill**. It calculate VAT rates for EU customers on-the-fly and sends beautiful PDF invoices to your customers automatically.
**Setup in less than 5 minutes**. Easy and quick!
1. Activate the plugin, go to Settings > Quaderno Checkout, then enter your Quaderno keys.
2. Edit the post or page where you want the payment button and checkout form to appear.
3. Add a simple shortcode.
Here are a few shortcode examples (amounts in U.S. cents):