PDFsharp Sample: Two Pages on One

Modified on 2015/09/14 10:20 by Thomas Hövel Categorized as PDFsharp Samples, Samples

{s:navigationPrevUpNext|TextLayout-sample|PDFsharpSamples|Unicode-sample}
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:  {s:PdfLink|TwoPagesOnOne-sample%2fTwoPagesOnOne_output.pdf|output.pdf} (37 kB)

==Screen Shots==
Here is a sample screen shot:

{s:ImageThumbLink|Two Pages on One screen shot|TwoPagesOnOne-sample%2fTwoPagesOnOneth.png|TwoPagesOnOne-sample%2fTwoPagesOnOne.png}

==Source Code==

This is the whole source code needed to create the PDF file:
{s:beginCsharp}
// 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);
&nbsp;
// Create the output document
PdfDocument outputDocument = new PdfDocument();
&nbsp;
// Show single pages
// (Note: one page contains two pages from the source document)
outputDocument.PageLayout = PdfPageLayout.SinglePage;
&nbsp;
XFont font = new XFont("Verdana", 8, XFontStyle.Bold);
XStringFormat format = new XStringFormat();
format.Alignment = XStringAlignment.Center;
format.LineAlignment = XLineAlignment.Far;
XGraphics gfx;
XRect box;
&nbsp;
// Open the external document as XPdfForm object
XPdfForm form = XPdfForm.FromFile(filename);
&nbsp;
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;
&nbsp;
  int rotate = page.Elements.GetInteger("/Rotate");
&nbsp;
  gfx = XGraphics.FromPdfPage(page);
&nbsp;
  // Set page number (which is one-based)
  form.PageNumber = idx + 1;
&nbsp;
  box = new XRect(0, 0, width / 2, height);
  // Draw the page identified by the page number like an image
  gfx.DrawImage(form, box);
&nbsp;
  // 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);
&nbsp;
  if (idx + 1 < form.PageCount)
  {
    // Set page number (which is one-based)
    form.PageNumber = idx + 2;
&nbsp;
    box = new XRect(width / 2, 0, width / 2, height);
    // Draw the page identified by the page number like an image
    gfx.DrawImage(form, box);
&nbsp;
    // 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);
  }
}
&nbsp;
// Save the document...
filename = "TwoPagesOnOne_tempfile.pdf";
outputDocument.Save(filename);
// ...and start a viewer.
Process.Start(filename);
{s:endCsharp}

{s:sampleSourceCode}

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PDFsharp Sample: Two Pages on One