In additions to security and support updates, this older version of Adobe is not supported for use on the latest versions of Mac OS X and Windows Operating Systems. PDFs are a target for security exploits, which means keeping your software up to date protects your use of the software as well as ensuring that the product is fixed from issues that are reported to the manufacturer. Yes, due to the prolific use of the PDFs throughout the computing industry. Questions: Do I have to update my version of Adobe Acrobat XI on my computer?
