Long Description

Full description or summary of the content of a graphical object, table, or textual object such as a text box. The long description is used by some systems to make the object accessible to people or systems that cannot read/see/display the object.


Conversion Note: This element is not to be used as a replacement for <caption>, which is a visual element displayed as part of a figure, table, etc. The <long-desc> is not a visual element; rather, it is used to be spoken in circumstances where the graphical element cannot be viewed. This element differs from the <alt-text> element which contains text that is displayed when the figure, caption, or other major element is not available or cannot be processed by the person or device type being addressed.


content-type Type of Content
id Identifier
xml:lang Language

Content Model

<!ELEMENT  long-desc    (#PCDATA %long-desc-elements;)*              >

Expanded Content Model



Text, numbers, or special characters, zero or more

This element may be contained in:

<array>, <chem-struct>, <chem-struct-wrap>, <disp-formula>, <disp-formula-group>, <fig>, <fig-group>, <graphic>, <inline-supplementary-material>, <media>, <preformat>, <supplementary-material>, <table-wrap>, <table-wrap-group>


No sample is available at this time.