Chapter 18. Footnotes

The shipped AsciiDoc configuration includes three footnote inline macros:

footnote:[<text>]: Generates a footnote with text <text>.
footnoteref:[<id>,<text>]: Generates a footnote with a reference ID <id> and text <text>.
footnoteref:[<id>]: Generates a reference to the footnote with ID <id>.

The footnote text can span multiple lines.

The xhtml11 and html5 backends render footnotes dynamically using JavaScript; html4 outputs do not use JavaScript and leave the footnotes inline; docbook footnotes are processed by the downstream DocBook toolchain.

Example footnotes:

A footnote footnote:[An example footnote.];
a second footnote with a reference ID footnoteref:[note2,Second footnote.];
finally a reference to the second footnote footnoteref:[note2].

Renders:

A footnote ^[2]; a second footnote with a reference ID ^[3]; finally a reference to the second footnote ^[3].

^[2]An example footnote.

^[3]Second footnote.