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Merge pull request #18 from synercoder/document-information-dictionary
Added document information
2 parents 99c6c0b + d622526 commit 5d969c1

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9 files changed

+247
-147
lines changed

9 files changed

+247
-147
lines changed

‎samples/Synercoding.FileFormats.Pdf.ConsoleTester/Program.cs

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@@ -26,6 +26,12 @@ public static void Main(string[] args)
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);
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writer
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// Set document info
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.SetDocumentInfo(info =>
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{
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info.Author = "Gerard Gunnewijk";
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info.Title = "Example 1";
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})
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// Test placement using rectangle
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.AddPage(page =>
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{

‎src/Synercoding.FileFormats.Pdf/DocumentInformation.cs

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using System;
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namespace Synercoding.FileFormats.Pdf
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{
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/// <summary>
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/// This class contains information about the document
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/// </summary>
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public class DocumentInformation
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{
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/// <summary>
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/// The document's title
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/// </summary>
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public string Title { get; set; }
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/// <summary>
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/// The name of the person who created the document
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/// </summary>
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public string Author { get; set; }
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/// <summary>
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/// The subject of the document
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/// </summary>
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public string Subject { get; set; }
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/// <summary>
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/// Keywords associated with the document
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/// </summary>
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public string Keywords { get; set; }
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/// <summary>
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/// If the document was converted to PDF from another format, the name of the conforming product that created the original document from which it was converted. Otherwise the name of the application that created the document.
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/// </summary>
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public string Creator { get; set; }
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/// <summary>
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/// If the document was converted to PDF from another format, the name of the conforming product that converted it to PDF.
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/// </summary>
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public string Producer { get; set; }
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/// <summary>
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/// The date and time the document was created, in human-readable form.
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/// </summary>
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public DateTime? CreationDate { get; set; } = DateTime.Now;
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/// <summary>
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/// The date and time the document was most recently modified, in human-readable form.
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/// </summary>
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public DateTime? ModDate { get; set; }
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}
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}

‎src/Synercoding.FileFormats.Pdf/Helpers/PdfTypeHelper.cs

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using System;
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namespace Synercoding.FileFormats.Pdf.Helpers
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{
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internal static class PdfTypeHelper
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{
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public static string ToPdfHexadecimalString(string input)
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{
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var bytes = System.Text.Encoding.ASCII.GetBytes(input);
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var builder = new System.Text.StringBuilder(bytes.Length + 2);
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builder.Append("<");
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foreach (var b in bytes)
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{
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builder.Append(b.ToString("X2"));
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}
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builder.Append(">");
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return builder.ToString();
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}
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public static string ToPdfDate(DateTimeOffset input)
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{
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var datePart = input.ToString("yyyyMMddHHmmss");
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var builder = new System.Text.StringBuilder(22);
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builder.Append("(D:");
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builder.Append(datePart);
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var hours = input.Offset.Hours;
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var minutes = input.Offset.Minutes;
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if (hours == 0 && minutes == 0)
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{
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builder.Append("Z00'00");
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}
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else
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{
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if (hours > 0 || ( hours == 0 && minutes > 0 ))
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{
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builder.Append("+");
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}
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else
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{
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builder.Append("-");
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}
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builder.Append(Math.Abs(hours).ToString().PadLeft(2, '0'));
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builder.Append("'");
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builder.Append(minutes.ToString().PadLeft(2, '0'));
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}
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builder.Append(")");
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return builder.ToString();
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}
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}
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}

‎src/Synercoding.FileFormats.Pdf/PdfInternals/Objects/Catalog.cs

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@@ -6,14 +6,15 @@ namespace Synercoding.FileFormats.Pdf.PdfInternals.Objects
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{
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internal class Catalog : IPdfObject
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{
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private readonly PdfReference _pageTree;
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public Catalog(PdfReference id, PdfReference pageTree)
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{
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Reference = id;
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_pageTree = pageTree;
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PageTree = pageTree;
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}
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public PdfReference Reference { get; private set; }
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public PdfReference Reference { get; }
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public PdfReference PageTree { get; }
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public bool IsWritten { get; private set; }
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{
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dictionary
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.Type(ObjectType.Catalog)
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.Write("/Pages", _pageTree);
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.Write("/Pages", PageTree);
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});
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IsWritten = true;
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@@ -39,5 +40,4 @@ public uint WriteToStream(Stream stream)
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public void Dispose()
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{ }
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}
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}

‎src/Synercoding.FileFormats.Pdf/PdfInternals/Objects/DocumentInformationDictionary.cs

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using Synercoding.FileFormats.Pdf.Extensions;
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using Synercoding.FileFormats.Pdf.Helpers;
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using System;
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using System.IO;
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namespace Synercoding.FileFormats.Pdf.PdfInternals.Objects
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{
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internal class DocumentInformationDictionary : IPdfObject
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{
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private DocumentInformation _documentInformation;
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public DocumentInformationDictionary(PdfReference id)
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{
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Reference = id;
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}
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public DocumentInformationDictionary(PdfReference id, DocumentInformation data)
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: this(id)
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{
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Data = data ?? throw new ArgumentNullException(nameof(data));
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}
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public PdfReference Reference { get; }
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public bool IsWritten { get; private set; }
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public DocumentInformation Data
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{
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get => _documentInformation;
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set => _documentInformation = value ?? throw new ArgumentNullException(nameof(Data));
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}
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public void Dispose()
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{ }
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public uint WriteToStream(Stream stream)
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{
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if (IsWritten)
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{
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throw new InvalidOperationException("Object is already written to stream.");
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}
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var position = (uint)stream.Position;
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stream.IndirectDictionary(Reference, dictionary =>
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{
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if (!string.IsNullOrWhiteSpace(Data.Title))
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dictionary.Write("/Title", PdfTypeHelper.ToPdfHexadecimalString(Data.Title));
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if (!string.IsNullOrWhiteSpace(Data.Author))
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dictionary.Write("/Author", PdfTypeHelper.ToPdfHexadecimalString(Data.Author));
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if (!string.IsNullOrWhiteSpace(Data.Subject))
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dictionary.Write("/Subject", PdfTypeHelper.ToPdfHexadecimalString(Data.Subject));
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if (!string.IsNullOrWhiteSpace(Data.Keywords))
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dictionary.Write("/Keywords", PdfTypeHelper.ToPdfHexadecimalString(Data.Keywords));
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if (!string.IsNullOrWhiteSpace(Data.Creator))
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dictionary.Write("/Creator", PdfTypeHelper.ToPdfHexadecimalString(Data.Creator));
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if (!string.IsNullOrWhiteSpace(Data.Producer))
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dictionary.Write("/Producer", PdfTypeHelper.ToPdfHexadecimalString(Data.Producer));
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if (Data.CreationDate != null)
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dictionary.Write("/CreationDate", PdfTypeHelper.ToPdfDate(Data.CreationDate.Value));
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if (Data.ModDate != null)
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dictionary.Write("/ModDate", PdfTypeHelper.ToPdfDate(Data.ModDate.Value));
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});
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IsWritten = true;
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return position;
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}
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}
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}

‎src/Synercoding.FileFormats.Pdf/PdfInternals/Objects/PageTree.cs

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@@ -8,9 +8,9 @@ namespace Synercoding.FileFormats.Pdf.PdfInternals.Objects
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{
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internal class PageTree : IPdfObject
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{
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private readonly IEnumerable<IPdfObject> _pages;
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private readonly IList<IPdfObject> _pages;
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public PageTree(PdfReference id, IEnumerable<IPdfObject> pages)
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public PageTree(PdfReference id, IList<IPdfObject> pages)
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{
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Reference = id;
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_pages = pages;

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