Adobe Acrobat XI (version 11) was a major release of Adobe’s PDF management software. It introduced features like:

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1. Improved Productivity: Streamline your workflow with efficient PDF creation, editing, and management tools.
2. Enhanced Collaboration: Facilitate collaboration and review processes with others, regardless of their location or device.
3. Increased Security: Protect sensitive information with advanced security features, such as passwords, encryption, and digital signatures.
4. Cost Savings: Reduce costs associated with printing, scanning, and storing physical documents.
5. Flexibility and Compatibility: Work with PDFs across various platforms, including Windows and Mac.

Direct Content Editing: Introduced "real" editing tools that allowed users to modify text and images directly within the PDF.