參考?How to insert custom page number in Aspose.Words：

String?src?=?dataDir?+?"Page?numbers.docx";
String?dst?=?dataDir?+?"Page?numbers_out.docx";
//?Create?a?new?document?or?load?from?disk
Aspose.Words.Document?doc?=?new?Aspose.Words.Document(src);
//?Create?a?document?builder
Aspose.Words.DocumentBuilder?builder?=?new?DocumentBuilder(doc);
//?Go?to?the?primary?footer
builder.MoveToHeaderFooter(HeaderFooterType.FooterPrimary);
//?Add?fields?for?current?page?number
builder.InsertField("PAGE",?"");
//?Add?any?custom?text
builder.Write("?/?");
//?Add?field?for?total?page?numbers?in?document
builder.InsertField("NUMPAGES",?"");

//?Import?new?document
Aspose.Words.Document?newDoc?=?new?Aspose.Words.Document(dataDir?+?"new.docx");
//?Link?the?header/footer?of?first?section?to?previous?document
newDoc.FirstSection.HeadersFooters.LinkToPrevious(true);
doc.AppendDocument(newDoc,?ImportFormatMode.UseDestinationStyles);
//?Save?the?document
doc.Save(dst);