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Text that is an exact replacement for the marked content. Used only if the content is marked with PdfTagType.Span.
The default value is undefined which means that the marked content has no replacement.
An alternative description of the marked contentand its children in human-redable form. Used only if the content is marked with PdfTagType.Span.
The default value is undefined which means that the marked content does not have an alternative description.
The expanded form of an abbreviation (PDF 1.5) Used only if the content is marked with PdfTagType.Span.
The default value is undefined which means that the marked content does not have the expanded form of an abbreviation.
A language code specifying the natural language for all text in the marked content. Used only if the content is marked with PdfTagType.Span.
The language code is a 2-character ISO 639 language code (e.g. "en" for English or "ja" for Japanese) followed by an optional 2-character ISO 3166 country code (e.g. "US" for the United States or "JP" for Japan). For example: "en", "en-US", "ja-JP".
The default value is undefined which means that the marked content does not have the default natural language.
Represents the options to mark the content with.