Why is Adobe InDesign important for advertising and business?

Adobe InDesign is a software used for graphic designing. This is very important not only in advertising but in all other aspects of designing because of its widespread use. It is becoming the Desktop publishing software (DTP). We use this for creating and editing of designs. It has a lot of demand as we can design almost everything including posters, magazines, books, postcards, invitations, pamphlets and brochures.