/// <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); }