linkToAnchor
Wraps the content added in block in a clickable region that jumps to the anchor registered under the same id — the internal-link counterpart of link. Forward references are fine: the anchor may appear later in the document.
Clickable on iOS and JVM/Desktop; on Android only the visual styling renders (no annotation support in PdfDocument). Style the content yourself, exactly like link.
Parameters
anchor
the anchor id to jump to.