Adobe 22001438 Accessibility Guide - Page 17
When to tag documents, To tag a document after it has been converted to PDF
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ADOBE ACROBAT 7.0 10 Section 2: Understanding tagging and document structure The tag tree in Acrobat 7.0 Professional displays tags that represent the elements that are on a page. The hierarchy of the tags reflects the document's structure. When to tag documents You can tag documents during conversion to Adobe PDF (recommended) or after they have been converted to PDF. Tagging a document during conversion to PDF requires an authoring application that supports tagging in PDF. This functionality usually provides the best tagging results. Tagging during conversion enables the authoring application to draw from the source document's paragraph styles or other structural information to produce a tag tree that reflects an accurate reading order and appropriate levels of tags. This tagging can more readily interpret the structure of complex layouts, such as embedded sidebars, closely spaced columns, irregular text alignment, and tables. Tagging during conversion to PDF can also properly tag the links, cross-references, bookmarks, and alternate text (when available) that are in the file. To tag a document after it has been converted to PDF, use the Add Tags To Document command in Acrobat 7.0. This command works on any untagged PDF document, such as a document that has been printed to PDF by using Adobe PDF Printer. Acrobat analyzes the content of the PDF document to interpret the individual page elements, their hierarchical structure, and the intended reading order of each page, and then builds a tag tree that reflects that information. It also creates tags for any links, cross-references, and bookmarks that you added to the document in Acrobat.