Issue with Footer when I provide MarginInfo

Hi,

I am using the following code to add the page footer.

TextFragment textFragment = new TextFragment("Testing Footer Page Number 1");
             textFragment.getTextState().setFont(new com.aspose.pdf.FontRepository().findFont("Helvetica"));
             textFragment.getTextState().setFontSize(8f);
             
             com.aspose.pdf.HeaderFooter footer= new com.aspose.pdf.HeaderFooter();
             
             MarginInfo marginInfo = new MarginInfo();
             marginInfo.setBottom(20.00);
            
             footer.setMargin(marginInfo);  
            
             Paragraphs paragraphs = new Paragraphs();
             paragraphs.add(textFragment);
               
             footer.setParagraphs(paragraphs);
           
            pdfDocument.getPages().get_Item(1).setFooter(header);

The above code does not place a footer on the page, but if I comment the Margin Info it works fine. Is there an issue with using Margin Info. I want the footer to be placed at a particular location from the bottom.

Regards,
Rajeev Mathur