public static void Main(string[] args)
{
// Extract the page content from the source file.
FileStream stream = File.OpenRead("input.pdf");
PDFFile source = new PDFFile(stream);
PDFPageContent pageContent = source.ExtractPageContent(0);
stream.Close();
PDFFixedDocument document = new PDFFixedDocument();
document.OptionalContentProperties = new PDFOptionalContentProperties();
PDFPage page = document.Pages.Add();
// Create an optional content group (layer) for the extracted page content.
PDFOptionalContentGroup ocg = new PDFOptionalContentGroup();
ocg.Name = "Embedded page";
ocg.VisibilityState = PDFOptionalContentGroupVisibilityState.AlwaysVisible;
ocg.PrintState = PDFOptionalContentGroupPrintState.NeverPrint;
// Draw the extracted page content in the layer
page.Canvas.BeginOptionalContentGroup(ocg);
page.Canvas.DrawFormXObject(pageContent, 0, 0, page.Width, page.Height);
page.Canvas.EndOptionalContentGroup();
// Build the display tree for the optional content
PDFOptionalContentDisplayTreeNode ocgNode = new PDFOptionalContentDisplayTreeNode(ocg);
document.OptionalContentProperties.DisplayTree.Nodes.Add(ocgNode);
using (FileStream output = File.Create("EmbedPageAsLayer.pdf"))
{
document.Save(output);
}
}
/// <summary>
/// Main method for running the sample.
/// </summary>
public static SampleOutputInfo[] Run()
{
PDFFixedDocument document = new PDFFixedDocument();
document.OptionalContentProperties = new PDFOptionalContentProperties();
PDFStandardFont helveticaBold = new PDFStandardFont(PDFStandardFontFace.HelveticaBold, 18);
PDFBrush blackBrush = new PDFBrush();
PDFBrush greenBrush = new PDFBrush(PDFRgbColor.DarkGreen);
PDFBrush yellowBrush = new PDFBrush(PDFRgbColor.Yellow);
PDFPen bluePen = new PDFPen(PDFRgbColor.DarkBlue, 5);
PDFPen redPen = new PDFPen(PDFRgbColor.DarkRed, 5);
PDFPage page = document.Pages.Add();
page.Canvas.DrawString("Simple optional content: the green rectangle", helveticaBold, blackBrush, 20, 50);
PDFOptionalContentGroup ocgPage1 = new PDFOptionalContentGroup();
ocgPage1.Name = "Page 1 - Green Rectangle";
page.Canvas.BeginOptionalContentGroup(ocgPage1);
page.Canvas.DrawRectangle(bluePen, greenBrush, 20, 100, 570, 400);
page.Canvas.EndOptionalContentGroup();
page = document.Pages.Add();
page.Canvas.DrawString("Multipart optional content: the green rectangles", helveticaBold, blackBrush, 20, 50);
PDFOptionalContentGroup ocgPage2 = new PDFOptionalContentGroup();
ocgPage2.Name = "Page 2 - Green Rectangles";
page.Canvas.BeginOptionalContentGroup(ocgPage2);
page.Canvas.DrawRectangle(bluePen, greenBrush, 20, 200, 570, 200);
page.Canvas.EndOptionalContentGroup();
page.Canvas.DrawRectangle(redPen, yellowBrush, 250, 90, 110, 680);
page.Canvas.BeginOptionalContentGroup(ocgPage2);
page.Canvas.DrawRectangle(bluePen, greenBrush, 20, 500, 570, 200);
page.Canvas.EndOptionalContentGroup();
page = document.Pages.Add();
page.Canvas.DrawString("Imbricated optional content: the green and yellow rectangles", helveticaBold, blackBrush, 20, 50);
PDFOptionalContentGroup ocgPage31 = new PDFOptionalContentGroup();
ocgPage31.Name = "Page 3 - Green Rectangle";
page.Canvas.BeginOptionalContentGroup(ocgPage31);
page.Canvas.DrawRectangle(bluePen, greenBrush, 20, 100, 570, 600);
PDFOptionalContentGroup ocgPage32 = new PDFOptionalContentGroup();
ocgPage32.Name = "Page 3 - Yellow Rectangle";
page.Canvas.BeginOptionalContentGroup(ocgPage32);
page.Canvas.DrawRectangle(redPen, yellowBrush, 100, 200, 400, 300);
page.Canvas.EndOptionalContentGroup(); // ocgPage32
page.Canvas.EndOptionalContentGroup(); // ocgPage31
page = document.Pages.Add();
page.Canvas.DrawString("Multipage optional content: the green rectangles on page 4 & 5", helveticaBold, blackBrush, 20, 50);
PDFOptionalContentGroup ocgPage45 = new PDFOptionalContentGroup();
ocgPage45.Name = "Page 4 & 5 - Green Rectangles";
page.Canvas.BeginOptionalContentGroup(ocgPage45);
page.Canvas.DrawRectangle(bluePen, greenBrush, 20, 200, 570, 200);
page.Canvas.EndOptionalContentGroup();
page.Canvas.DrawRectangle(redPen, yellowBrush, 250, 90, 110, 680);
page.Canvas.BeginOptionalContentGroup(ocgPage45);
page.Canvas.DrawRectangle(bluePen, greenBrush, 20, 500, 570, 200);
page.Canvas.EndOptionalContentGroup();
page = document.Pages.Add();
page.Canvas.DrawString("Multipage optional content: continued", helveticaBold, blackBrush, 20, 50);
page.Canvas.BeginOptionalContentGroup(ocgPage45);
page.Canvas.DrawRectangle(bluePen, greenBrush, 20, 200, 570, 200);
page.Canvas.EndOptionalContentGroup();
page.Canvas.DrawRectangle(redPen, yellowBrush, 250, 90, 110, 680);
page.Canvas.BeginOptionalContentGroup(ocgPage45);
page.Canvas.DrawRectangle(bluePen, greenBrush, 20, 500, 570, 200);
page.Canvas.EndOptionalContentGroup();
// Build the display tree for the optional content,
// how its structure and relationships between optional content groups are presented to the user.
PDFOptionalContentDisplayTreeNode ocgPage1Node = new PDFOptionalContentDisplayTreeNode(ocgPage1);
document.OptionalContentProperties.DisplayTree.Nodes.Add(ocgPage1Node);
PDFOptionalContentDisplayTreeNode ocgPage2Node = new PDFOptionalContentDisplayTreeNode(ocgPage2);
document.OptionalContentProperties.DisplayTree.Nodes.Add(ocgPage2Node);
PDFOptionalContentDisplayTreeNode ocgPage31Node = new PDFOptionalContentDisplayTreeNode(ocgPage31);
document.OptionalContentProperties.DisplayTree.Nodes.Add(ocgPage31Node);
PDFOptionalContentDisplayTreeNode ocgPage32Node = new PDFOptionalContentDisplayTreeNode(ocgPage32);
ocgPage31Node.Nodes.Add(ocgPage32Node);
PDFOptionalContentDisplayTreeNode ocgPage45Node = new PDFOptionalContentDisplayTreeNode(ocgPage45);
document.OptionalContentProperties.DisplayTree.Nodes.Add(ocgPage45Node);
SampleOutputInfo[] output = new SampleOutputInfo[] { new SampleOutputInfo(document, "optionalcontent.pdf") };
return(output);
}
private static PDFFixedDocument CreatePDFA2uDocument(Stream iccInput, Stream ttfInput)
{
iccInput.Position = 0;
ttfInput.Position = 0;
PDFFixedDocument document = new PDFFixedDocument();
document.OptionalContentProperties = new PDFOptionalContentProperties();
// Setup the document by creating a PDF/A output intent, based on a RGB ICC profile,
// and document information and metadata
PDFIccColorSpace icc = new PDFIccColorSpace();
byte[] profilePayload = new byte[iccInput.Length];
iccInput.Read(profilePayload, 0, profilePayload.Length);
icc.IccProfile = profilePayload;
PDFOutputIntent oi = new PDFOutputIntent();
oi.Type = PDFOutputIntentType.PDFA1;
oi.Info = "sRGB IEC61966-2.1";
oi.OutputConditionIdentifier = "Custom";
oi.DestinationOutputProfile = icc;
document.OutputIntents = new PDFOutputIntentCollection();
document.OutputIntents.Add(oi);
document.DocumentInformation = new PDFDocumentInformation();
document.DocumentInformation.Author = "O2 Solutions";
document.DocumentInformation.Title = "PDF4NET PDF/A-2B/U Demo";
document.DocumentInformation.Creator = "PDF4NET PDF/A-2B/U Demo Application";
document.DocumentInformation.Producer = "PDF4NET";
document.DocumentInformation.Keywords = "pdf/a";
document.DocumentInformation.Subject = "PDF/A-2B/U Sample produced by PDF4NET";
document.XmpMetadata = new PDFXmpMetadata();
PDFPage page = document.Pages.Add();
page.Rotation = 90;
// All fonts must be embedded in a PDF/A document.
PDFStringAppearanceOptions sao = new PDFStringAppearanceOptions();
sao.Font = new PDFAnsiTrueTypeFont(ttfInput, 24, true);
sao.Brush = new PDFBrush(new PDFRgbColor(0, 0, 128));
PDFStringLayoutOptions slo = new PDFStringLayoutOptions();
slo.HorizontalAlign = PDFStringHorizontalAlign.Center;
slo.VerticalAlign = PDFStringVerticalAlign.Bottom;
slo.X = page.Width / 2;
slo.Y = page.Height / 2 - 10;
page.Canvas.DrawString("PDF4NET", sao, slo);
slo.Y = page.Height / 2 + 10;
slo.VerticalAlign = PDFStringVerticalAlign.Top;
sao.Font.Size = 14;
page.Canvas.DrawString("This is a sample PDF/A-2B/U document that shows the PDF/A-2B/U capabilities in PDF4NET library", sao, slo);
// PDF/A-2 documents support optional content and transparency.
PDFOptionalContentGroup ocgPage1 = new PDFOptionalContentGroup();
ocgPage1.Name = "Green Rectangle";
page.Canvas.BeginOptionalContentGroup(ocgPage1);
page.Canvas.SaveGraphicsState();
PDFExtendedGraphicState gs = new PDFExtendedGraphicState();
gs.FillAlpha = 0.8;
gs.StrokeAlpha = 0.2;
gs.BlendMode = PDFBlendMode.Luminosity;
page.Canvas.SetExtendedGraphicState(gs);
PDFBrush greenBrush = new PDFBrush(PDFRgbColor.DarkGreen);
PDFPen bluePen = new PDFPen(PDFRgbColor.DarkBlue, 5);
page.Canvas.DrawRectangle(bluePen, greenBrush, 20, 20, page.Width - 40, page.Height - 40);
page.Canvas.RestoreGraphicsState();
page.Canvas.EndOptionalContentGroup();
// Build the display tree for the optional content,
// how its structure and relationships between optional content groups are presented to the user.
PDFOptionalContentDisplayTreeNode ocgPage1Node = new PDFOptionalContentDisplayTreeNode(ocgPage1);
document.OptionalContentProperties.DisplayTree.Nodes.Add(ocgPage1Node);
return(document);
}
