How do I add borders and a watermark to a pdf using iTextSharp Library?

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C#

public FileStreamResult Pdf()
        {

            MemoryStream workStream = new MemoryStream();
            Document document = new Document();
            PdfWriter.GetInstance(document, workStream).CloseStream = false;

            document.Open();
            document.Add(new Paragraph("Hello World"));
            document.Add(new Paragraph(DateTime.Now.ToString()));
            document.Close();

            byte[] byteInfo = workStream.ToArray();
            workStream.Write(byteInfo, 0, byteInfo.Length);
            workStream.Position = 0;

            return new FileStreamResult(workStream, "application/pdf");
        }

Posted 28-Jul-15 10:06am

Member 11798630

Updated 28-Jul-15 14:35pm

User 59241

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Ben J. Boyle · Answer 1 · 2015-07-28T10:19:00

Try this. Dug it out of previously working code.

BORDER

C#

PdfContentByte content = writer.DirectContent;
Rectangle rect = new Rectangle(doc.PageSize);
rect.Left += doc.LeftMargin;
rect.Right -= doc.RightMargin;
rect.Top -= doc.TopMargin;
rect.Bottom += doc.BottomMargin;
content.SetColorStroke(Color.BLACK);
content.Rectangle(rect.Left, rect.Bottom, rect.Width, rect.Height);
content.Stroke();

WATERMARK
Add similar to the onStartPage event so it gets called for each new page.

C#

float fontSize = 48;
float xPos = 300;
float yPos = 400;
float angle = 25;

PdfContentByte wmark = writer.DirectContentUnder;
BaseFont baseFont = BaseFont.CreateFont(BaseFont.ARIAL, BaseFont.WINANSI, BaseFont.EMBEDDED);
wmark.BeginText();
wmark.SetColorFill(BaseColor.LIGHT_GRAY);
wmark.SetFontAndSize(baseFont, fontSize);
wmark.ShowTextAligned(PdfContentByte.ALIGN_CENTER, "CONFIDENTIAL", xPos, yPos, angle);
wmark.EndText();