/// <summary>
/// Main method for running the sample.
/// </summary>
public static SampleOutputInfo[] Run(Stream input)
{
PDFFile file = new PDFFile(input);
PDFFixedDocument document = new PDFFixedDocument();
PDFPage page = document.Pages.Add();
PDFPageOptionalContent oc1 = file.ExtractPageOptionalContentGroup(4, "1");
page.Canvas.DrawFormXObject(oc1, 0, 0, page.Width / 2, page.Height / 2);
PDFPageOptionalContent oc2 = file.ExtractPageOptionalContentGroup(4, "2");
page.Canvas.DrawFormXObject(oc2, page.Width / 2, 0, page.Width / 2, page.Height / 2);
PDFPageOptionalContent oc3 = file.ExtractPageOptionalContentGroup(4, "3");
page.Canvas.DrawFormXObject(oc3, 0, page.Height / 2, page.Width / 2, page.Height / 2);
PDFPageOptionalContent oc4 = file.ExtractPageOptionalContentGroup(4, "4");
page.Canvas.DrawFormXObject(oc4, page.Width / 2, page.Height / 2, page.Width / 2, page.Height / 2);
SampleOutputInfo[] output = new SampleOutputInfo[] { new SampleOutputInfo(document, "optionalcontentextraction.pdf") };
return(output);
}