Including page nos. in .odt file with QTextDocument

Hello
I am using QTextdocument and QTextdocumentwriter to create .odt file. I want to include page nos. at the end of each page in .odt file. I saw people have done it with QPainter but then it is for .pdf files. I tried to use QPainter but it does not support .odt file format. Can anybody help me with some solution here?
Thanks,

Here is some code on github that supposedly allows insertion of headers and footers into a QTextDocument during printing. Maybe it will help. BTW, I googled "QTextDocument pagination" and this was the third hit. There are probably other solutions out there as well.