Adobe Photoshop is a graphics editing program developed and published by Adobe Systems Incorporated. wikipedia.org

Adobe Illustrator is a vector graphics editor developed and marketed by Adobe Systems. wikipedia.org

Web design is the process of planning and creating a website. Text, images, digital media and interactive elements are used by web designers to produce the page seen on the web browser. wikipedia.org

Digital photography uses an array of electronic photodetectors to capture the image focused by the lens, as opposed to an exposure on photographic film. The captured image is then digitized and stored as a computer file ready for digital processing, viewing, digital publishing or printing. wikipedia.org

An electronic book (variously, e-book, ebook, digital book, or even e-edition) is a book-length publication in digital form, consisting of text, images, or both, and produced on, published through, and readable on computers or other electronic devices.

Photo manipulation is the application of image editing techniques to photographs in order to create an illusion or deception (in contrast to mere enhancement or correction), through analog or digital means. wikipedia.org

Image editing encompasses the processes of altering images, whether they be digital photographs, traditional analog photographs, or illustrations. wikipedia.org