Hiii
Follow below code
PdfTemplate footerTmpl = writer.getDirectContent().createTemplate( 0, 0, pageWidth, footerHeight );
footerTmpl.setFontAndSize( someFont, someSize );
footerTmpl.setTextMatrix( x, y );
footer.showText("blah");
Here, pdftemplate is the itextcharp class.with this you can give footer to each page of your pdf file.
try this hope it will work for you....!!