If you are looking for a portable PDF solution but are worried about the security flaws of a 2010-era program, there are modern, safer alternatives:
It represented a specific moment in computing history: a time when the PDF had cemented itself as the global standard for digital documents, and users demanded the ability to access those documents from anywhere, without being tethered to an installation wizard. adobe acrobat reader 93 portable
Do not search for this on random "PortableApps" torrent sites. Many malicious actors inject adware into old portable versions. If you are looking for a portable PDF
Adobe Acrobat Reader 9.3 was a minor update released on January 13, 2010 there are modern