Foxit is much smaller and faster than Adobe. They offer a portable version (legitimately) for enterprise USB drives, and a free trial gives you full Pro features for 14 days.
Foxit offers an officially sanctioned portable version. It is lightweight, does not require admin rights, and runs from a USB drive. It includes: adobe acrobat pro 2023 portable exclusive
Real Adobe Acrobat Pro receives quarterly security patches for zero-day exploits. The "2023 Portable Exclusive" is frozen in time. If a new PDF exploit (like a malicious JavaScript inside a PDF) emerges, your portable version has no defense. Foxit is much smaller and faster than Adobe
In software terminology, "portable" means the application runs directly from a folder or USB drive without writing entries to the Windows Registry or the AppData folder. Portable software leaves no footprint on the host machine. In software terminology