# Voucher Templates
MIVO features a powerful template engine to create beautiful, printable vouchers.
## Customizing Templates
Templates use HTML and specialized placeholders to display voucher data.
- **Variables**:
- **Credentials**: `\{\{username\}\}`, `\{\{password\}\}`
- **Server**: `\{\{server_name\}\}`, `\{\{dns_name\}\}`
- **Plan**: `\{\{profile\}\}`, `\{\{price\}\}`, `\{\{validity\}\}`, `\{\{time_limit\}\}`, `\{\{data_limit\}\}`
- **Network**: `\{\{ip_address\}\}`, `\{\{mac_address\}\}`
- **Extras**: `\{\{comment\}\}`, `\{\{copyright\}\}`, `\{\{qrcode\}\}` (supports options like `size=100 fg=red`)
- **Preview**: Test your template instantly from the editor.
## Quick Print
Once a template is saved, it becomes available in the **Quick Print** menu within your router sessions.