Footer in pdf with iTextSharp

本文关键字：iTextSharp with pdf in Footer | 更新日期: 2023-09-27 18:07:53

我想在PDF文档的每一页添加一个页脚。我想知道姓名和当前日期。我正在使用这个代码，但它只打印最后一页。我需要每一页都有。我遗漏了什么?

DateTime horario = DateTime.MinValue;
document.Add(new iText.Paragraph(document.BottomMargin, "TEST FOOTER" + horario));

Footer in pdf with iTextSharp

我设法解决这个问题。在我创建pdf的课程中，我添加了这一行。

pdfWriter.PageEvent = new PDFFooter();

和我创建了另一个类PDFFooter 

 public class PDFFooter : PdfPageEventHelper
    {
        // write on top of document
        public override void OnOpenDocument(PdfWriter writer, Document document)
        {
            base.OnOpenDocument(writer, document);
            PdfPTable tabFot = new PdfPTable(new float[] { 1F });
            tabFot.SpacingAfter = 10F;
            PdfPCell cell;
            tabFot.TotalWidth = 300F;
            cell = new PdfPCell(new Phrase(""));
            cell.Border = Rectangle.NO_BORDER;
            tabFot.AddCell(cell);
            tabFot.WriteSelectedRows(0, -1, 150, document.Top, writer.DirectContent);
        }
        // write on start of each page
        public override void OnStartPage(PdfWriter writer, Document document)
        {
            base.OnStartPage(writer, document);
        }
        // write on end of each page
        public override void OnEndPage(PdfWriter writer, Document document)
        {
            DateTime horario = DateTime.Now;
            base.OnEndPage(writer, document);
            PdfPTable tabFot = new PdfPTable(new float[] { 1F });
            PdfPCell cell;
            tabFot.TotalWidth = 300F;
            cell = new PdfPCell(new Phrase("TEST"+" - " + horario));
            cell.Border = Rectangle.NO_BORDER;
            cell.HorizontalAlignment = Element.ALIGN_CENTER;
            tabFot.AddCell(cell);
            tabFot.WriteSelectedRows(0, -1, 150, document.Bottom, writer.DirectContent);
        }
        //write on close of document
        public override void OnCloseDocument(PdfWriter writer, Document document)
        {
            base.OnCloseDocument(writer, document);
        }
    }
}
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