Because it hasn't been patched since 2017, using XI Pro is highly insecure.
It is not officially supported on Windows 11 or recent macOS versions (like Catalina and later), though some users have had success running it in compatibility mode. Solutions and Workarounds adobe-acrobat-xi-pro
Which (Windows/Mac) are you currently using? Because it hasn't been patched since 2017, using
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