I need an English language page when I buy Acrobat DC Pro, even if I'll be paying in Turkish Lira.

Hi jeromeo,

You will get the option to "Change Region" at the bottom of the page. Please use that option to change the language.

Let us know if you need any help.

Regards,

Meenakshi

The country associated with your adobe id must match the store you purchase from and must match the payment address.

change country associated with adobe id - https://helpx.adobe.com/x-productkb/policy-pricing/change-country-associated-with-adobe-id.html

change currency - https://forums.adobe.com/thread/1999694

change store - http://www.adobe.com/store_selector/storeselector.html

change adobe.com website language - https://forums.adobe.com/thread/1999693