In this release: 1) PDF stamp function is enhanced. Added support for controling stamp and background's opacity. In class Stamp, you can use setOpacity() method to set opacity of stamp. Added support for using one page of a PDF as stamp. In class Stamp, you can use bindPdf() methods to use one page of a pdf as stamp. 2) Added support for adding page number in PDF. In Class PdfFileStamp, you can use addPageNumber() method to add page number. 3) Added support for replacing string in PDF. Refer to the replaceText mothod of Class PdfContentEditor. 4) Added support for field information exporting and importing. Field information in PDF documents can be exported to either FDF or XFDF formated files or streams. Also, field information in FDF or XFDF format files or streams can be imported to PDF template now. Method ImportFdf() and ImportXfdf() can be used to respectively import field information to specific fields in PDF template to generate a new PDF file. Method ExportFdf() and ExportXfdf() can be used to respectively export field information contained in PDF files to FDF or XFDF format files or OutputStream.