Photoshop is Adobe’s photo editing, image creation and graphic design software. The software provides many image editing features for raster (pixel-based) images as well as vector graphics. It uses a layer-based editing system that enables image creation and altering with multiple overlays that support transparency.
Illustrators are artists that use their creative skills to create original images for a range of printed and digital products. They work closely with clients and the marketing team to turn ideas and printed media into inspiring illustrations
Adobe Lightroom (officially Adobe Photoshop Lightroom) is a creative image organization and image manipulation software developed by Adobe Inc. Its primary uses include importing, saving, viewing, organizing, tagging, editing, and sharing large numbers of digital images.