Title

Description	Specifies a title for an article, section, or the entire document, serving as a concise descriptor of the content.
Namespace	2.0
Category	grouping block

Attributes

Placement

Specifies how the element is placed relative to surrounding content (e.g., block-level or inline flow).

WritingMode

Defines the direction of text flow (e.g., left-to-right, right-to-left, or vertical).

BackgroundColor

Sets the background color for the element’s content area.

BorderColor

Specifies the color of the border around the element.

BorderStyle

Indicates the style of the border (e.g., solid, dashed, dotted).

BorderThickness

Defines the thickness of the border line in user space units (such as points).

Padding

Determines the space between the element’s border (or boundary) and its inner content.

Color

Applies the primary color (fill or stroke) for the text or graphic content.

role

Main indicator of type. This semantic association allows tools to present and support interaction with the object in a manner that is consistent with user expectations about other objects of that type.

Differences

Well tagged PDF:

The 'Title' element in Well-Tagged PDF identifies the title of a section or the document as a whole. It is used to enhance the reusability and clarity of content by explicitly marking title information.

For Well-Tagged PDF, the 'Title' element should be clearly associated with the content it describes, and be placed in an appropriate location within the structure tree. It must be unambiguous and consistent across the document to support content extraction and repurposing.

PDFUA:

In PDF/UA, the 'Title' element is essential for accessibility as it provides a concise and descriptive label for sections or the entire document. This aids users in quickly understanding the content’s focus.

PDF/UA mandates that every significant section should have a 'Title' element that is properly tagged and clearly conveys the purpose or subject of the section. The title should be presented in a way that is easily accessible by assistive technologies.