You can buy the application as a download only through the official website. I have simulated a payment and there is the possibility to buy it in Spain. Access the purchase page then select the version of the software and go on with the process. Select International, quantity number, then proceed to the next page. Select Spain from the country list, fill the form with your details and then payment options will be detailed. Finish the procedure and the full license and software should be provided to you by e-mail.
