Adobe Photoshop is software that is extensively used for raster image editing, graphic design and digital art. It makes use of layering to allow for depth and flexibility in the design and editing process, as well as provide powerful editing tools, that when combined, are capable of just about anything.
It was created by brothers Thomas and John Knoll in 1988. In 1989, John sold the program to Adobe Systems, which marketed it as “Photoshop.” Since then, the program has become the de facto industry standard for raster graphics editing. It is published for both macOS and Windows, but not Linux.
Photoshop is specifically designed to allow users to create and edit raster images in multiple layers. These overlays or layers can support transparency and can also act as masks or filters that can alter underlying images in the layers below them. Shadows and other effects such as alpha compositing can be applied. (Continue reading from Techopedia)
Adobe Photoshop is a critical tool for designers, web developers, graphic artists, photographers, and creative professionals. It is widely used for image editing, retouching, creating image compositions, website mockups, and adding affects. Digital or scanned images can be edited for use online or in-print. Website layouts can be created within Photoshop; their designs can be finalized before developers move on to the coding stage. Stand-alone graphics can be created and exported for use within other programs. (Continue reading from American Graphics Institute)