How to: Customize PDF Print Output

  • 4 minutes to read

Important

You need a license to the DevExpress Office File API or DevExpress Universal Subscription to use these examples in production code. Refer to the DevExpress Subscription page for pricing information.

This example shows how to customize print output and change settings for a page to be printed.

A document is printed with the specified initial printer settings using the PdfDocumentProcessor.Print method. In this example, the page numbers that should be printed in a document are specified using the PdfPrinterSettings.PageNumbers property.

When a page is printed, page settings for this page are queried via the PdfDocumentProcessor.QueryPageSettings event.

In this example, the second page of a document is printed in landscape orientation by setting the PdfQueryPageSettingsEventArgs.PageSettings.Landscape property to true when the PdfDocumentProcessor.QueryPageSettings event is handled.

When the document is sent to a printer, the PdfDocumentProcessor.PrintPage event is raised.

To draw an additional image on a printed page, the Graphics property of the PdfPrintPageEventArgs is used when the PdfDocumentProcessor.PrintPage event is handled. This image is drawn on each page by calling the Graphics.DrawImage method.

using DevExpress.Pdf;
using System.Drawing;

namespace CustomizePrintSettings {
    class Program {
        static void Main(string[] args) {

            // Create a PDF Document Processor instance and load a PDF into it.
            using (PdfDocumentProcessor documentProcessor = new PdfDocumentProcessor()) {
                documentProcessor.LoadDocument(@"..\..\Demo.pdf");

                // Declare the PDF printer settings.
                PdfPrinterSettings settings = new PdfPrinterSettings();

                // Specify the page numbers to be printed.
                settings.PageNumbers = new int[] { 1, 2, 3, 4, 5, 6 };

                // Handle the PrintPage event to specify print output.
                documentProcessor.PrintPage += OnPrintPage;

                // Handle the QueryPageSettings event to customize settings for a page to be printed.
                documentProcessor.QueryPageSettings += OnQueryPageSettings;

                // Print the document using the specified printer settings.
                documentProcessor.Print(settings);

                // Unsubscribe from PrintPage and QueryPageSettings events. 
                documentProcessor.PrintPage -= OnPrintPage;
                documentProcessor.QueryPageSettings -= OnQueryPageSettings;
            }
        }

        private static void OnQueryPageSettings(object sender, PdfQueryPageSettingsEventArgs e) {
            // Print the second page in landscape size.
            if (e.PageNumber == 2) {
                e.PageSettings.Landscape = true;
            }
            else e.PageSettings.Landscape = false;
        }

        // Specify what happens when the PrintPage event is raised.
        private static void OnPrintPage(object sender, PdfPrintPageEventArgs e) {

            // Draw a picture on each printed page.        
            using (Bitmap image = new Bitmap(@"..\..\DevExpress.png"))

                e.Graphics.DrawImage(image, new RectangleF(10, 30, image.Width / 2, image.Height / 2));
        }
    }
}

Important

The Print method works only on Windows OS. The PlatformNotSupportedException is thrown on other operating systems.

See Also