What footnotes do
A footnote is a short aside — a citation, a translation, a wry remark — anchored to a specific point in your text with a superscript marker. Nonfiction depends on them; plenty of modern fiction uses them for voice.
In Bookshaper you write the note once and every export renders it the way that format expects: at the bottom of the page in print PDF (with automatic continuation when a long note spills to the next page), as a tap-to-open popup in EPUB readers that support popup notes (Kindle, Apple Books) with a chapter-end fallback everywhere else, and as a real Word footnote in DOCX.
Inserting and editing a note
Place the cursor where the marker should sit, then right-click and choose Insert → Footnote, or press Cmd/Ctrl + Alt + N. A superscript marker appears and a small note editor opens beneath it — type the note, with bold, italic, and links available.
Click any marker to reopen its note. The popover also holds a footnote/endnote toggle for that one note, and a delete button. Markers renumber automatically as you add or remove notes; final numbering is assigned at export, where chapter boundaries are known.
Footnotes vs endnotes
A footnote renders where its marker lives — bottom of the print page, popup in ebooks. An endnote renders as the same superscript marker, but its text collects into a generated Notes section at the back of the book, grouped by chapter and styled by your Endnotes style target.
Convert a single note from its popover. Convert the whole book from the Format editor's Footnotes panel — both directions, any time.
Styling
The Footnotes style target controls the note text (font, size, spacing) and the indicator format: numbers, roman numerals, letters, or the traditional symbol sequence (*, †, ‡, §). Numbering can restart each chapter (the default) or run continuously through the book.