com.aspose.words

Example:

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

// An endnote is a way to attach a reference or a side comment to text
// that does not interfere with the main body text's flow. 
// Inserting an endnote adds a small superscript reference symbol
// at the main body text where we insert the endnote.
// Each endnote also creates an entry at the end of the document, consisting of a symbol
// that matches the reference symbol in the main body text.
// The reference text that we pass to the document builder's "InsertEndnote" method.
builder.write("Hello world!");
builder.insertFootnote(FootnoteType.ENDNOTE, "Endnote contents.");
builder.insertBreak(BreakType.SECTION_BREAK_NEW_PAGE);
builder.write("This is the second section.");

// We can use the "Position" property to determine where the document will place all of its endnotes.
// If we set the value of the "Position" property to "EndnotePosition.EndOfDocument",
// every footnote will show up in a collection at the end of the document. This is the default value.
// If we set the value of the "Position" property to "EndnotePosition.EndOfSection",
// every footnote will show up in a collection at the end of the section whose text contains the endnote's reference mark.
doc.getEndnoteOptions().setPosition(endnotePosition);

doc.save(getArtifactsDir() + "InlineStory.PositionEndnote.docx");