Are you trying to it, activate it, or looking for alternatives ?
Because it hasn't been patched since 2017, using XI Pro is highly insecure. adobe-acrobat-xi-pro
Knowing this will help me provide the exact solution you need. ACROBAT XI PRO SHUTTING DOWN - Adobe Community Are you trying to it, activate it, or
To reinstall, users have had to contact Adobe directly for a valid download link, as public downloads were removed. Are you trying to it
Which (Windows/Mac) are you currently using?
Note: You may still find perpetual, physical copies for sale on secondary markets like eBay . To provide the best advice, could you tell me: