DOwnload Link after purchasing a product

i only sell ebooks in my store
so it is posisble to give the user the download link right after his paypal payment?

The tutorials/FAQ's ^^ in the top nav bar are a great source for often asked subjects
https://www.zen-cart.com/tutorials/index.php?article=71
https://www.zen-cart.com/tutorials/index.php?article=120
https://www.zen-cart.com/tutorials/index.php?article=292
https://www.zen-cart.com/tutorials/index.php?article=280
https://www.zen-cart.com/tutorials/index.php?article=121

kobra:

The tutorials/FAQ's ^^ in the top nav bar are a great source for often asked subjectsnot in every case. I am using a german version, and nothing is named as described in the tutorials. It's not even close, so that you can guess most of it. Are there any german tutorials?

IF I do everything - at least I think that I do everything, as the text is written in english, my version is in german, the attribute is not added and displays this error:

Attribut konnte nicht erstellt werden - Attributoption und Attributmerkmal stimmen nicht überein - Download : Download

Sorry, I cannot provide you the translation for this, I only have it in german.

My english is not bad, I understand everything, but I cannot use it. Please tell me a way to do so!