Hello,here is the code related to footer.And could you tell more detail about 
how to use Page event instead of HeaderFooter?Could you give an example?

Code:

HeaderFooter footer = new HeaderFooter(new Phrase("页码:", 
PdfConvertor.setTxtFont(ChineseFont,12)), true); 
 footer.setBorder(Rectangle.NO_BORDER); 
 
> Date: Wed, 15 Jul 2009 08:48:48 +0200
> From: [email protected]
> To: [email protected]
> Subject: Re: [iText-questions] java.lang.NullPointerException at 
> com.lowagie.text.pdf.PdfDocument.open(Unknown Source)
> 
> 熊晨晖 wrote:
> > I got NullPointerException in the below code,and the exception message 
> > is like this java.lang.NullPointerException at 
> > com.lowagie.text.pdf.PdfDocument.open(Unknown Source),I don't know why 
> > it is,can someone help me out of this trouble?
> 
> Maybe footer is causing the NPE:
> 
> > doc.setFooter(footer);
> 
> We can't "reproduce" the problem if we don't know what you have in the
> footer object. Also: you shouldn't use HeaderFooter anymore. Use page
> events instead.
> -- 
> This answer is provided by 1T3XT BVBA
> http://www.1t3xt.com/ - http://www.1t3xt.info
> 
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