Which Adobe program is most suitable for creating a multi-page document?

Adobe InDesign is the most suitable program for creating a multi-page document because it is specifically designed for layout and publishing tasks. It provides robust features for managing text, images, and other graphic elements across multiple pages, making it easy to create complex documents such as brochures, magazines, books, and reports.

InDesign's tools for page layout, including master pages, styles for consistent typography, and an intuitive interface for working with text flow, allow designers to efficiently manage the content across many pages. Additionally, it offers capabilities such as interactive elements and export options tailored for various formats, enhancing the overall design process.

The other programs have different primary functions which make them less appropriate for handling multi-page layouts. Photoshop is primarily for raster image editing and may struggle with text-heavy or layout-focused documents. Illustrator is great for vector graphics and illustrations, but its document management for multiple pages is more limited than InDesign. After Effects is mainly used for animation and motion graphics, making it unsuitable for static multi-page document creation.