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/ˈmɑːrkt ˈkɒntɛnt/ · marked·content
noun
  1. Portions of a digital document that have been tagged or otherwise identified for special handling, such as accessibility, indexing, or formatting. The PDF's marked content includes tags that let screen readers announce headings and tables correctly.
  2. In web development, content wrapped in semantic markup (e.g., ARIA roles or HTML5 tags) to convey meaning to assistive technologies. By adding ARIA attributes, the developer turned plain text into marked content that can be interpreted by screen‑reading software.
Did you know? The term ‘marked content’ was introduced in Adobe’s PDF 1.2 specification (1994) to support the emerging need for accessible electronic documents, paving the way for modern screen‑reader compatibility.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 16, 2026