Add an item to the document outline hierarchy with the name utf8
that links to the location specified by link_attribs. Link
attributes have the same keys and values as the [Link Tag]link,
excluding the "rect" attribute. The item will be a child of the
item with id parent_id. Use CAIRO_PDF_OUTLINE_ROOT as the parent
id of top level items.
Add an item to the document outline hierarchy with the name utf8 that links to the location specified by link_attribs. Link attributes have the same keys and values as the [Link Tag]link, excluding the "rect" attribute. The item will be a child of the item with id parent_id. Use CAIRO_PDF_OUTLINE_ROOT as the parent id of top level items.