Adobe officially ended support for Acrobat XI in October 2017 . This means no more security updates. Using this software to open PDFs from the internet is a major security risk, as modern exploits can easily bypass its outdated defenses.

Known for being fast and having a familiar "Ribbon" interface like Microsoft Office. Conclusion

Below is an overview of what made this version iconic, the features included in the 11.0.3 update, and the modern risks associated with using older, modified software.

While it might be tempting to find an old copy of Acrobat XI Pro to avoid monthly fees, there are several major drawbacks in the current year: