This sample shows how to place two pages of an existing document on one landscape orientated page of a new document.
PDF Output File
See the PDF file created by this sample:
output.pdf (37 kB)
Screen Shots
Here is a sample screen shot:
Source Code
This is the whole source code needed to create the PDF file:
// Get a fresh copy of the sample PDF file
string filename = "Portable Document Format.pdf";
File.Copy(Path.Combine("../../../../../PDFs/", filename),
Path.Combine(Directory.GetCurrentDirectory(), filename), true);
// Create the output document
PdfDocument outputDocument = new PdfDocument();
// Show single pages
// (Note: one page contains two pages from the source document)
outputDocument.PageLayout = PdfPageLayout.SinglePage;
XFont font = new XFont("Verdana", 8, XFontStyle.Bold);
XStringFormat format = new XStringFormat();
format.Alignment = XStringAlignment.Center;
format.LineAlignment = XLineAlignment.Far;
XGraphics gfx;
XRect box;
// Open the external document as XPdfForm object
XPdfForm form = XPdfForm.FromFile(filename);
for (int idx = 0; idx < form.PageCount; idx += 2)
{
// Add a new page to the output document
PdfPage page = outputDocument.AddPage();
page.Orientation = PageOrientation.Landscape;
double width = page.Width;
double height = page.Height;
int rotate = page.Elements.GetInteger("/Rotate");
gfx = XGraphics.FromPdfPage(page);
// Set page number (which is one-based)
form.PageNumber = idx + 1;
box = new XRect(0, 0, width / 2, height);
// Draw the page identified by the page number like an image
gfx.DrawImage(form, box);
// Write document file name and page number on each page
box.Inflate(0, -10);
gfx.DrawString(String.Format("- {1} -", filename, idx + 1),
font, XBrushes.Red, box, format);
if (idx + 1 < form.PageCount)
{
// Set page number (which is one-based)
form.PageNumber = idx + 2;
box = new XRect(width / 2, 0, width / 2, height);
// Draw the page identified by the page number like an image
gfx.DrawImage(form, box);
// Write document file name and page number on each page
box.Inflate(0, -10);
gfx.DrawString(String.Format("- {1} -", filename, idx + 2),
font, XBrushes.Red, box, format);
}
}
// Save the document...
filename = "TwoPagesOnOne_tempfile.pdf";
outputDocument.Save(filename);
// ...and start a viewer.
Process.Start(filename);