To justify footnotes in a PDF export, make sure the PDF generation tool you’re using supports CSS styling for footnotes—some tools (like PrinceXML or WeasyPrint) handle this better than others. If your current tool supports it, try targeting the correct selector by inspecting the generated HTML structure first. For example, try using .footnote, .footnote p together or even div.footnote p depending on your structure, and confirm the styles aren’t being overridden elsewhere. Also, ensure the style is applied before PDF generation, not afterward.