While the "Reader" is free, it serves as the gateway to paid services like Acrobat Pro DC, which allows for full PDF editing. 2. Adobe Acrobat Reader 2020 & 2024 (Classic Track)
If you are trying to figure out which version you need or how the software has changed, 1. Adobe Acrobat Reader DC (The Current Standard)
For 99% of users, is the correct choice. It ensures you have the latest security definitions to protect against "zero-day" exploits often hidden in PDF attachments.
For businesses and IT departments that prefer stability over new features, Adobe offers the .
It is ideal for enterprise environments where IT administrators want to ensure all employees are using the exact same interface without sudden layout changes. 3. Adobe Reader XI (Legacy)
This version was famous for introducing the ability to use the full suite of commenting and markup tools without needing a paid license.
If you are running an extremely old operating system (like Windows XP or early versions of macOS), you might be forced to use a legacy version like Reader 9 or XI, but be aware that these versions are vulnerable to modern hacking techniques.
Unlike the DC version, the Classic version (like Acrobat Reader 2020) does not receive new features over its lifecycle—only security updates.
A Guide to Versions of Adobe Reader: Evolution and Features Adobe Reader (now known as Adobe Acrobat Reader) has been the gold standard for viewing, printing, and signing PDF documents for over three decades. Since its debut in 1993, the software has transitioned from a simple document viewer into a sophisticated, cloud-connected productivity tool.
The "DC" stands for . This is the modern version of the software that most users have installed today.