Adobe In Design Document

INDD (Adobe InDesign Document) is an advanced design file format used for professional publishing and document layout creation. It enables the creation of highly structured and visually consistent PDFs.

From an accessibility perspective, INDD files are extremely powerful because they provide full control over document structure, including headings, lists, tables, logical reading order, image alt text, and semantic tagging.

This structured foundation ensures that exported PDFs can meet ADA, WCAG, and Section 508 compliance requirements more effectively. As a result, INDD files are considered a preferred source format for accessible PDF creation and remediation.