Acrobat for High Sierra

Hi Martina Seminara

Hope you are doing well and thank you for reaching out. Mac OS High Sierra is an Old and EOL OS and it may or may not work with the latest version of Adobe Acrobat/Reader DC application.

You may download the Acrobat Reader DC application using the link - https://get.adobe.com/reader/ and see if that helps.
Note: Latest version of Acrobat/Reader DC application may or may not work with the Mac EOL OS.

Regards

Amal