Hi!. Here is a full translation for spanish language. It's a spanish (Spain), or you can call it Spanish (International), or translated Español (España), o Español (Internacional). I downloaded the template 3-4 days ago so i supose its updated, and it's for the last version. I have tried to do my best, hope it's enough good for you.
I have put optionals translations in the coments of the translation file, in case you need it, but i put what i think its the best in the main translation, so probabily you won't need it. The only one that i think you will want to change is under the General Settings, the "Web Server:" On/Off. Cause the translation is Endendido/Apagado, but i think there is no enough space for it, so i suggest to change it for a Si/No (Yes/No), it fit and it will be understood what it means, but its your decision. The "Ok" has been translated as "Aceptar" (Accept), cause its the usual translation, and Ok its not a spanish word, but if you need it, you can leave the "ok's", everyone knows what it means.
I think the translation its good, but when you send me the Premium Lifetime License i could see much better if everything is fine, i only have the Free version now, so there are things that i can't see at the moment.
If you need something, you can contact me by email, but i will watch those days if you reply me here too.
A last thing... i found a little bug in the software. When you start a scan, if you pause it, and cancel, finish, and then starts a new scan, the button is saying "resume" as if it were still in pause.