Overlay image onto PDF using PDFSharp

Question

Can't seem to find much out there for this. I've a PDF, onto which I'd like to overlay an image of an electronic signature. Any suggestions on how to accomplish that using PDFSharp?

Thanks

Answer 1

Try the following

private void GeneratePDF(string filename, string imageLoc) {     PdfDocument document = new PdfDocument();      // Create an empty page or load existing     PdfPage page = document.AddPage();      // Get an XGraphics object for drawing     XGraphics gfx = XGraphics.FromPdfPage(page);     DrawImage(gfx, imageLoc, 50, 50, 250, 250);      // Save and start View     document.Save(filename);     Process.Start(filename); }  void DrawImage(XGraphics gfx, string jpegSamplePath, int x, int y, int width, int height) {     XImage image = XImage.FromFile(jpegSamplePath);     gfx.DrawImage(image, x, y, width, height); } 

This will generate a new PDF with the specified image near the top of the page. If you need to use an existing document change the PdfDocument constructor to

PdfDocument document = new PdfDocument(filename); 

where filename is the name of the file to load and change the PdfPage line to

PdfPage page = document.Pages[pageNum]; 

where pageNum is the number of the page on which you need to add the image.

After that, it just a matter of getting the positioning on the page by altering the parameters for DrawImage to suit.

DrawImage(gfx, imageLoc, 50, 50, 250, 250); 

Good luck!