One of the biggest advantages of Photoshop Portable is that it doesn’t require installation. Users can launch it directly from a USB drive or other external storage devices, which means there’s no need to go through the installation process on every machine. This can be especially beneficial for those who work on different computers and don’t want to deal with multiple installations. The official Adobe Photoshop requires a paid license, typically through a subscription to Adobe Creative Cloud. Photoshop Portable, however, is often available for free through unofficial channels. This makes it an attractive option for individuals who do not want to pay for a subscription but still want access to Photoshop's core features.
You can download photoshop portable online from here.