I need to put a barcode on each page of a PDF document. I'm having a hard time with this and hope someone can help.

This article on XsPDF.com is what you looking for, check out: Draw and add barcode on PDF in C#.

Answers

Sorry for the lack of my understanding. What do you mean by saying put a barcode in PDF document? Do you mean to create and draw a barcode on a PDF or directly add a barcode image to PDF document. These are totally different. The later one is actually to add an image to PDF file. If you want to create a barcode image on the fly and don't want to save to the server, i mean, just put it in the memory stream and show it in a pdf, you may need a library to do this.

Thank you for your quick reply.

Sorry about misleading you guys. I know how to create a pdf in the memory stream, open it, add image, etc. So, what i looking for is the second situation, creating barcode symbology and show it in a PDF page.

Got you! Please download a free trial of XsPDF Barcode SDK and integrate it to your VS project by adding project reference to the library dll. And then use the following sample code to create a QR Code and show it in PDF page.

Here is the simple example:

// Create a new PDF document.
PdfDocument document = new PdfDocument();

// Create a page.
PdfPage page = document.AddPage();

// Get graphics object from pdf page
XGraphics g = XGraphics.FromPdfPage(page);

// Create a pdf barcode object
PdfBarcode barcode = new PdfBarcode();

// Set the barcode type to qrcode symbol
barcode.BarType = BarCodeType.QRCode;

// Input the barcode data content
barcode.Data = "xspdf123456789";

// Change foreground and background color of barcode
barcode.BarcodeColor = XColors.Black;
barcode.BackgroundColor = XColors.White;

// Set qrcode error correction level
barcode.QRCodeECL = ErrorCorrectionLevelMode.L;

// Set the barcode Position and location
barcode.Location = new XPoint(100, 100);

// Set the barcode width and height
barcode.Size = new XSize(200, 200);

barcode.DrawBarcode(g);

// Save and show the document           
document.Save("Barcode.pdf");
Process.Start("Barcode.pdf");