Adobe offers three basic Acrobat products as part of their Document Cloud (DC) product line Acrobat Reader DC Acrobat Standard DC Acrobat Pro DC There is no product called Adobe Reader. Acrobat Reader DC is a free download and it allows you to view and annotate PDF files. It is application software that must be downloaded and installed on aputer (Windows PC or Mac) to fully utilize. Adobe is working on a cloud-based web apppatible with Google Drive that currently does not have full functionality but that is expected in the near future. Acrobat Standard and Pro DC are not free and require a subscription that must be paid annually. They are application software that you must download to aputer (Windows PC or Mac) to fully utilize. They offer the ability to edit PDFs and many other features that are typically for-pay services. Here how theypare Reader Standard and Pro View PDFs Annotate PDFs Sign PDFs Standard and Pro Create PDFs and export to Word Excel or PowerPoint Merge pages delete pages and rotate pages Edit and images right in your PDF Create bookmarks within a PDF to jump to specific pages Easily create fill sign and send forms Share PDFs for viewing reviewing signing and track activity Open PDFs are protected by Microsoft Information Protection solutions including Azure Information Protection and Microsoft 365. Pro Only Compare two versions of a PDF to review all differences Turn scanned documents into editable searchable PDFs Take advantage of advanced mobile editing features Validate and fix PDFs for ISO and accessibility standards horizontal-rule I hope this helps.