Adobe Reader contains the essential tools for working with PDF files.
Adobe Acrobat Reader is software designed for viewing documents in PDF format developed by Adobe Systems. At the same time, it allows you to make annotations or comments, fill out and sign forms, insert digital signatures or print documents, both from the computer and from mobile devices. It includes authoring and editing functions, although these are part of the complete package, accessible by paying a subscription.
Adobe Acrobat Reader DC offers integration with cloud file storage services such as Dropbox, Google Drive, OneDrive, Box and Adobe Document Cloud, so in addition to containing the essential tools to work with your PDF files, it also allows you to access them from anywhere. Adobe Acrobat Reader DC is distributed as desktop programs and mobile applications that are compatible with Windows, Mac, iOS, and Android operating systems.