For users who primarily use Photoshop for digital illustration, concept art, or matte painting, Krita is a superior open-source application.
A portable application is a modified version of a software program designed to run without being installed on a host operating system. It stores its configuration settings within its own directory, allowing users to carry the software on a removable storage device like a USB flash drive and use it on multiple computers.
While it's possible to find third-party websites offering "portable" or "free" downloads of Adobe Photoshop CC 2018, I strongly advise against using these sources. These downloads may:
The most robust free, open-source alternative to Photoshop. It features advanced layering, masks, filters, and customizable brush engines. GIMP can also be downloaded as an official, safe portable app via PortableApps.com.
Disclaimer: This article is for informational purposes only and does not endorse or encourage software piracy. Users should always use legitimate software obtained through proper channels.