Out there in the world, there are great photographers, and great editors. Some are able to create and take unreal images that might otherwise seem impossible.
Adobe Photoshop is a raster graphics editor for Windows and macOS developed and marketed by Adobe Inc. It was first designed by Thomas and John Knoll in 1988. Since then, not only in raster graphics editing, but also in digital art in general, the software has become the industry standard.
As a result, the software's name has become a generic trademark, leading to its use as a verb (for example, "to photoshop an image," "photoshopping," and "photoshop contest"), despite Adobe's objections.
Photoshop supports masks, alpha compositing, and numerous color models, including RGB, CMYK, CIELAB, spot color, and duotone, and can edit and compose raster pictures on several layers.
To accommodate these functionalities, Photoshop employs its own PSD and PSB file formats. Aside from raster images, Photoshop offers limited capabilities for editing and rendering text, vector graphics (particularly through clipping paths for the latter), 3D graphics, and video.
Plug-ins are programs that run inside Photoshop and add new or enhanced features. They are developed and distributed independently of Photoshop.