//// This code is part of Document Solutions for PDF .NET demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System.IO;using System.IO.Compression;using System.Drawing;using GrapeCity.Documents.Pdf;using GCDRAW = GrapeCity.Documents.Drawing;
namespace DsPdfWeb.Demos{    // Shows how to set various document properties such as PDF version, document info and metadata.    public class DocProperties    {        public int CreatePDF(Stream stream)        {            // Create a new PDF document:            var doc = new GcPdfDocument();            // While normally the PDF Version written into the document is determined automatically            // (as the minimal version needed for the features actually used in this document),            // it can be explicitly set:            doc.PdfVersion = "1.7";            // By default, GcPdfDocument uses CompressionLevel.Fastest to reduce the file size.            // Setting the level to CompressionLevel.NoCompression will result in uncompressed PDF:            doc.CompressionLevel = CompressionLevel.NoCompression;            // By default, font subsets containing just the glyphs used in the document,            // are embedded. This can be changed to embed whole fonts (which may result in            // huge file size) or to not embed fonts as we do here (embedding can also            // be controlled for individual fonts using the GcPdfDocument.Fonts collection):            doc.FontEmbedMode = FontEmbedMode.NotEmbed;            // Document properties such as title, author etc. can be set on GcPdfDocument.DocumentInfo,            // but it should be noted that similar properties can be set in the GcPdfDocument.Metadata            // and in most PDF readers properties set in metadata (see below) take precedence.            // Here we set some of the properties available in DocumentInfo:            doc.DocumentInfo.Title = "DsPdf Document Info Sample";            doc.DocumentInfo.Author = "Jaime Smith";            doc.DocumentInfo.Subject = "GcPdfDocument.DocumentInfo";            doc.DocumentInfo.Producer = "DsPdfWeb Producer";            doc.DocumentInfo.Creator = "DsPdfWeb Creator";            // For sample sake, set CreationDate to a date 10 years in the future:            doc.DocumentInfo.CreationDate = Common.Util.TimeNow().AddYears(10);            // Document metadata is available via the GcPdfDocument.Metadata property.            // It provides a number of predefined accessors, such as:            doc.Metadata.Contributors.Add("contributor 1");            doc.Metadata.Contributors.Add("contributor 2");            doc.Metadata.Contributors.Add("contributor 3");            doc.Metadata.Copyright = "MESCIUS inc.";            doc.Metadata.Creators.Add("Creator 1");            doc.Metadata.Creators.Add("Creator 2");            doc.Metadata.Creators.Add("Creator 3");            doc.Metadata.Description = "Sample document description";            doc.Metadata.Keywords.Add("Keyword1");            doc.Metadata.Keywords.Add("MESCIUS");            doc.Metadata.Keywords.Add("Keyword3");            doc.Metadata.Source = "Sourced by DsPdfWeb";            // Arbitrary metadata can also be added using the AddProperty method:            doc.Metadata.AddProperty("http://purl.org/dc/elements/1.1/", "language", "English");            // Finally, add a page and some text to the document and save it:            var rc = Common.Util.AddNote("DsPdf Document Properties sample.", doc.NewPage());            //            var pg = doc.Pages.Last;            var g = pg.Graphics;            var tl = g.CreateTextLayout();            tl.AppendLine("See the source code of this demo (C# or VB.NET) for details on how to access the document properties and metadata.");            tl.AppendLine();            tl.AppendLine("When viewing the PDF, click the 'Document properties' button located in the top right part of the DsPdfViewer toolbar " +                "to see the properties associated with this PDF document.");            tl.MaxWidth = pg.Bounds.Width - rc.X * 2;            tl.MarginLeft = rc.X;            tl.MarginTop = rc.Bottom + 36;            g.DrawTextLayout(tl, PointF.Empty);            // Done:            doc.Save(stream);            return doc.Pages.Count;        }    }}