I'm using iTextSharp to generate a large document. In this document I want some s开发者_开发知识库pecific pages in landscape. All the rest is portrait. Does anyone know how I can do this? Starting a new document is not an option.
Thanks!
You can set the document size and it will affect the next pages. Some snippets:
Set up your document somewhere (you know that already):
var document = new Document();
PdfWriter pdfWriter = PdfWriter.GetInstance(
document, new FileStream(destinationFile, FileMode.Create)
);
pdfWriter.SetFullCompression();
pdfWriter.StrictImageSequence = true;
pdfWriter.SetLinearPageMode();
Now loop over your pages (you probably do that as well already) and decide what page size you want per page:
for (int pageIndex = 1; pageIndex <= pageCount; pageIndex++) {
// Define the page size here, _before_ you start the page.
// You can easily switch from landscape to portrait to whatever
document.SetPageSize(new Rectangle(600, 800));
if (document.IsOpen()) {
document.NewPage();
} else {
document.Open();
}
}
try this code :
using System;
using System.IO;
using iText.Kernel.Events;
using iText.Kernel.Pdf;
using iText.Layout;
using iText.Layout.Element;
namespace iText.Samples.Sandbox.Events
{
public class PageOrientations
{
public static readonly String DEST = "results/sandbox/events/page_orientations.pdf";
public static readonly PdfNumber PORTRAIT = new PdfNumber(0);
public static readonly PdfNumber LANDSCAPE = new PdfNumber(90);
public static readonly PdfNumber INVERTEDPORTRAIT = new PdfNumber(180);
public static readonly PdfNumber SEASCAPE = new PdfNumber(270);
public static void Main(String[] args)
{
FileInfo file = new FileInfo(DEST);
file.Directory.Create();
new PageOrientations().ManipulatePdf(DEST);
}
protected void ManipulatePdf(String dest)
{
PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
// The default page orientation is set to portrait in the custom event handler.
PageOrientationsEventHandler eventHandler = new PageOrientationsEventHandler();
pdfDoc.AddEventHandler(PdfDocumentEvent.START_PAGE, eventHandler);
Document doc = new Document(pdfDoc);
doc.Add(new Paragraph("A simple page in portrait orientation"));
eventHandler.SetOrientation(LANDSCAPE);
doc.Add(new AreaBreak());
doc.Add(new Paragraph("A simple page in landscape orientation"));
eventHandler.SetOrientation(INVERTEDPORTRAIT);
doc.Add(new AreaBreak());
doc.Add(new Paragraph("A simple page in inverted portrait orientation"));
eventHandler.SetOrientation(SEASCAPE);
doc.Add(new AreaBreak());
doc.Add(new Paragraph("A simple page in seascape orientation"));
doc.Close();
}
private class PageOrientationsEventHandler : IEventHandler
{
private PdfNumber orientation = PORTRAIT;
public void SetOrientation(PdfNumber orientation)
{
this.orientation = orientation;
}
public void HandleEvent(Event currentEvent)
{
PdfDocumentEvent docEvent = (PdfDocumentEvent) currentEvent;
docEvent.GetPage().Put(PdfName.Rotate, orientation);
}
}
}
}
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