Document markup

Document markup is the process of adding codes or tags to a digital document to define its structure and formatting. These tags indicate elements like headings, paragraphs, lists, or links, guiding how the content appears and functions when viewed or processed. Markup languages such as HTML or XML use these tags to organize information, making it easier for computers to display or manipulate the document correctly. Essentially, markup acts as a set of instructions that shape the document’s presentation and interpretation without altering the actual content.