To create a text document or to type text within a document using Adobe Reader XI (version 11.0.23), you generally have two main options:
To view a PDF document in Adobe Reader XI: adobe reader xi version 11.0.23
The existence of version 11.0.23 in any production environment today constitutes a critical security vulnerability. As PDF files remain a primary vector for malware delivery, the use of an unpatched, five-year-plus-old parsing engine is an unacceptable risk. This paper concludes that while Reader XI was a milestone product, its usage must be retired immediately in favor of supported alternatives. To create a text document or to type