PDFsharp & MigraDoc Foundation

PdfDocument document = PdfReader.Open(fileName, PdfDocumentOpenMode.Modify);
string watermark = waterText;
PdfPage page = document.Pages[document.PageCount-1];
XFont font = new XFont("Arial", 6, XFontStyle.Bold);
XGraphics gfx = XGraphics.FromPdfPage(page, XGraphicsPdfPageOptions.Prepend);
XSize size = gfx.MeasureString(watermark, font);

gfx.TranslateTransform(50, 50);
gfx.RotateTransform(-90);

// Create a string format
XStringFormat format = new XStringFormat();
format.Alignment = XStringAlignment.Near;
format.LineAlignment = XLineAlignment.Near;

// Create a dimmed red brush
XBrush brush = new XSolidBrush(XColor.FromArgb(Color.Black));

// Draw the string
gfx.DrawString(watermark, font, brush, new XPoint(100-page.Height, page.Width - 80), format);


when i use the DrawString method,sometimes the watermark is covered by something, like pictures.

hou can I use the DrawString method to put the watermark always in the front?

Thanks.

I have known the answer.

XGraphics gfx = XGraphics.FromPdfPage(page, XGraphicsPdfPageOptions.Append);

Thanks.

Hi there,

I ran into the same problem but setting the parameter to Append does not help in my case. I attach my pdf, wich is a little bit strange, since it contains a tiff image. The file was produced with a TIFF printer driver having the capability of converting its output to a PDF File.

I am willing to change the document content but I do not have any idea how, and where to start.

Any help is greatly appreciated.

TIS - kermit