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             $numbering = new \Phpdocx\Elements\WordFragment($docx, 'defaultHeader');
                $numberoptions = array(
                        'textAlign' => 'right',
                'bold' => true,
                'fontSize' => 9,
                'color' => '000000',
                'default' => 1
                );
                $numbering->addPageNumber('page-of', $numberoptions);
                $partialHeaderData2->addWordML($numbering);
                
                $tableData = new \Phpdocx\Elements\WordFragment($docx, 'defaultHeader');
                $values = array(
                        array(
                                array('value'=>$partialHeaderData1, 'width'=>3000), 
                                array('value'=>$partialHeaderData2, 'width'=>2000, 'float' => array('align' => 'right'))
                        )
                );
                
                $options = array(
                'border' => 'none',
                'tableAlign' => 'left',
                'borderWidth' => 0,
                'indent'=>0,
                'cellSpacing'=>0,
                'cellMargin'=>0,
                'columnWidths' => array(3000, 2000),
                'bold' => true,
                'textProperties'=>array('fontSize'=>9)
                );
                
                $tableData->addTable($values, $options);

have this code.
partialHeaderData1 is WordFragment with embedded html.
partialHeaderData2 is WordFragment with embedded html to which we add pagenumbering with addWordML

but no matter which font i set to pagenumbering it still shows it as 10pt in word.. tried even to set font size in code to 29 it still shows that at 10pt.