Would you like help with any specific legitimate portable image editor, or guidance on setting up an official Adobe license for portable use?

If you need Photoshop-like functionality without installation:

Adobe Photoshop 2026 Portable is a powerful and convenient image editing solution that allows users to take their skills on the go. With its comprehensive set of tools, support for a wide range of file formats, and increased flexibility, Photoshop 2026 Portable is an ideal choice for creative professionals, freelancers, and students.