If you are looking for a "repack" because you want to avoid a subscription, consider these modern, safe, and often free alternatives:

Turn PDFs into editable Microsoft Word, Excel, or PowerPoint files without losing formatting.

Access to Adobe FormsCentral for professional data collection.

A completely free, full-featured PDF editor that rivals Acrobat Pro.

Windows 7, 8, or Windows 10 (Note: Windows 11 may require "Compatibility Mode"). Processor: 1.3GHz or faster. RAM: 512MB (1GB recommended). Hard Disk Space: 1.85GB. Modern Alternatives

If you already own a legitimate serial number for Acrobat XI, you should avoid "repack" sites and stick to verified sources:

Adobe officially ended support for Acrobat XI in October 2017 . This means even the 11.0.20 version has unpatched security vulnerabilities that modern hackers can exploit. Where to Safely Find Adobe Acrobat XI

Many users still find "New Old Stock" (NOS) boxed versions of Acrobat XI Pro on sites like eBay, which include the original disc and key. Technical Requirements for Version 11.0.20