"Portable" versions found on torrent sites are "repacks"—third-party modifications of the software designed to run without installation. These are created by "cracking" the software to bypass Adobe’s activation servers, which inherently makes them unauthorized and illegal copies. Critical Security Risks
Downloading repacked software from torrent networks exposes Mac users to several high-level threats: Do Photoshop have portable version? - Adobe Community Adobe Photoshop Portable For Mac Torrent REPACK
Adobe Photoshop Portable For Mac Torrent REPACK offers many of the same features as the full version of Adobe Photoshop, including: Adobe Photoshop Portable For Mac Torrent REPACK