public ObjectToken WriteObject(Stream stream, IToken token, int?reservedNumber = null)
{
int number;
if (reservedNumber.HasValue)
{
if (!reservedNumbers.Remove(reservedNumber.Value))
{
throw new InvalidOperationException();
}
number = reservedNumber.Value;
}
else
{
number = CurrentNumber++;
}
var reference = new IndirectReference(number, 0);
var obj = new ObjectToken(stream.Position, reference, token);
objectOffsets.Add(reference, obj.Position);
TokenWriter.WriteToken(obj, stream);
return(obj);
}
public override IndirectReferenceToken WriteToken(IToken token)
{
if (!Initialized)
{
InitializePdf(DefaultVersion);
}
ms.SetLength(0);
TokenWriter.WriteToken(token, ms);
var contents = ms.ToArray();
if (AttemptDeduplication && hashes.TryGetValue(contents, out var value))
{
return(value);
}
var ir = ReserveObjectNumber();
if (AttemptDeduplication)
{
hashes.Add(contents, ir);
}
offsets.Add(ir.Data, Stream.Position);
TokenWriter.WriteObject(ir.Data.ObjectNumber, ir.Data.Generation, contents, Stream);
return(ir);
}
public ObjectToken WriteObject(Stream stream, IToken token)
{
var reference = new IndirectReference(CurrentNumber++, 0);
var obj = new ObjectToken(stream.Position, reference, token);
objectOffsets.Add(reference, obj.Position);
TokenWriter.WriteToken(obj, stream);
return(obj);
}
private static ObjectToken WriteObject(IToken content, Stream stream, Dictionary <IndirectReference, long> objectOffsets, ref int number)
{
var reference = new IndirectReference(number++, 0);
var obj = new ObjectToken(stream.Position, reference, content);
objectOffsets.Add(reference, obj.Position);
// TODO: write
TokenWriter.WriteToken(obj, stream);
return(obj);
}
public virtual IndirectReferenceToken WriteToken(IToken token, IndirectReferenceToken indirectReference)
{
if (!Initialized)
{
InitializePdf(DefaultVersion);
}
offsets.Add(indirectReference.Data, Stream.Position);
var obj = new ObjectToken(Stream.Position, indirectReference.Data, token);
TokenWriter.WriteToken(obj, Stream);
return(indirectReference);
}
public virtual IndirectReferenceToken WriteToken(IToken token)
{
if (!Initialized)
{
InitializePdf(DefaultVersion);
}
var ir = ReserveObjectNumber();
offsets.Add(ir.Data, Stream.Position);
var obj = new ObjectToken(Stream.Position, ir.Data, token);
TokenWriter.WriteToken(obj, Stream);
return(ir);
}
public override IndirectReferenceToken WriteToken(IToken token, IndirectReferenceToken indirectReference)
{
if (!Initialized)
{
InitializePdf(DefaultVersion);
}
ms.SetLength(0);
TokenWriter.WriteToken(token, ms);
var contents = ms.ToArray();
hashes.Add(contents, indirectReference);
offsets.Add(indirectReference.Data, Stream.Position);
TokenWriter.WriteObject(indirectReference.Data.ObjectNumber, indirectReference.Data.Generation, contents, Stream);
return(indirectReference);
}
public void Flush(decimal version, IndirectReferenceToken catalogReference)
{
if (catalogReference == null)
{
throw new ArgumentNullException(nameof(catalogReference));
}
WriteString($"%PDF-{version:0.0}", Stream);
Stream.WriteText("%");
Stream.WriteByte(169);
Stream.WriteByte(205);
Stream.WriteByte(196);
Stream.WriteByte(210);
Stream.WriteNewLine();
var offsets = new Dictionary <IndirectReference, long>();
ObjectToken catalogToken = null;
foreach (var pair in tokenReferences)
{
var referenceToken = pair.Key;
var token = pair.Value;
var offset = Stream.Position;
var obj = new ObjectToken(offset, referenceToken.Data, token);
TokenWriter.WriteToken(obj, Stream);
offsets.Add(referenceToken.Data, offset);
if (catalogToken == null && referenceToken == catalogReference)
{
catalogToken = obj;
}
}
if (catalogToken == null)
{
throw new Exception("Catalog object wasn't found");
}
// TODO: Support document information
TokenWriter.WriteCrossReferenceTable(offsets, catalogToken, Stream, null);
}
public byte[] Build()
{
if (memory == null)
{
throw new ObjectDisposedException("Merger closed already");
}
if (documentPages.Count < 1)
{
throw new PdfDocumentFormatException("Empty document");
}
var pagesDictionary = new DictionaryToken(new Dictionary <NameToken, IToken>
{
{ NameToken.Type, NameToken.Pages },
{ NameToken.Kids, new ArrayToken(documentPages) },
{ NameToken.Count, new NumericToken(pageCount) }
});
var pagesRef = context.WriteObject(memory, pagesDictionary, (int)rootPagesIndirectReference.Data.ObjectNumber);
var catalog = new DictionaryToken(new Dictionary <NameToken, IToken>
{
{ NameToken.Type, NameToken.Catalog },
{ NameToken.Pages, new IndirectReferenceToken(pagesRef.Number) }
});
var catalogRef = context.WriteObject(memory, catalog);
TokenWriter.WriteCrossReferenceTable(context.ObjectOffsets, catalogRef, memory, null);
if (currentVersion != DefaultVersion)
{
memory.Seek(0, SeekOrigin.Begin);
WriteHeaderToStream();
}
var bytes = memory.ToArray();
Close();
return(bytes);
}
/// <summary>
/// Builds a PDF document from the current content of this builder and its pages.
/// </summary>
/// <returns>The bytes of the resulting PDF document.</returns>
public byte[] Build()
{
var context = new BuilderContext();
var fontsWritten = new Dictionary <Guid, ObjectToken>();
using (var memory = new MemoryStream())
{
// Header
WriteString("%PDF-1.7", memory);
// Files with binary data should contain a 2nd comment line followed by 4 bytes with values > 127
memory.WriteText("%");
memory.WriteByte(169);
memory.WriteByte(205);
memory.WriteByte(196);
memory.WriteByte(210);
memory.WriteNewLine();
// Body
foreach (var font in fonts)
{
var fontObj = font.Value.FontProgram.WriteFont(font.Value.FontKey.Name, memory, context);
fontsWritten.Add(font.Key, fontObj);
}
var resources = new Dictionary <NameToken, IToken>
{
{ NameToken.ProcSet, new ArrayToken(new [] { NameToken.Create("PDF"), NameToken.Create("Text") }) }
};
if (fontsWritten.Count > 0)
{
var fontsDictionary = new DictionaryToken(fontsWritten.Select(x => (fonts[x.Key].FontKey.Name, (IToken) new IndirectReferenceToken(x.Value.Number)))
.ToDictionary(x => x.Item1, x => x.Item2));
var fontsDictionaryRef = context.WriteObject(memory, fontsDictionary);
resources.Add(NameToken.Font, new IndirectReferenceToken(fontsDictionaryRef.Number));
}
var reserved = context.ReserveNumber();
var parentIndirect = new IndirectReferenceToken(new IndirectReference(reserved, 0));
var pageReferences = new List <IndirectReferenceToken>();
foreach (var page in pages)
{
var pageDictionary = new Dictionary <NameToken, IToken>
{
{ NameToken.Type, NameToken.Page },
{
NameToken.Resources,
new DictionaryToken(resources)
},
{ NameToken.MediaBox, RectangleToArray(page.Value.PageSize) },
{ NameToken.Parent, parentIndirect }
};
if (page.Value.Operations.Count > 0)
{
var contentStream = WriteContentStream(page.Value.Operations);
var contentStreamObj = context.WriteObject(memory, contentStream);
pageDictionary[NameToken.Contents] = new IndirectReferenceToken(contentStreamObj.Number);
}
var pageRef = context.WriteObject(memory, new DictionaryToken(pageDictionary));
pageReferences.Add(new IndirectReferenceToken(pageRef.Number));
}
var pagesDictionary = new DictionaryToken(new Dictionary <NameToken, IToken>
{
{ NameToken.Type, NameToken.Pages },
{ NameToken.Kids, new ArrayToken(pageReferences) },
{ NameToken.Count, new NumericToken(pageReferences.Count) }
});
var pagesRef = context.WriteObject(memory, pagesDictionary, reserved);
var catalog = new DictionaryToken(new Dictionary <NameToken, IToken>
{
{ NameToken.Type, NameToken.Catalog },
{ NameToken.Pages, new IndirectReferenceToken(pagesRef.Number) }
});
var catalogRef = context.WriteObject(memory, catalog);
var informationReference = default(IndirectReference?);
if (IncludeDocumentInformation)
{
var informationDictionary = DocumentInformation.ToDictionary();
if (informationDictionary.Count > 0)
{
var dictionary = new DictionaryToken(informationDictionary);
informationReference = context.WriteObject(memory, dictionary).Number;
}
}
TokenWriter.WriteCrossReferenceTable(context.ObjectOffsets, catalogRef, memory, informationReference);
return(memory.ToArray());
}
}
/// <summary>
/// Builds a PDF document from the current content of this builder and its pages.
/// </summary>
/// <returns>The bytes of the resulting PDF document.</returns>
public byte[] Build()
{
var fontsWritten = new Dictionary <Guid, ObjectToken>();
using (var memory = new MemoryStream())
{
// Header
WriteString("%PDF-1.7", memory);
// Files with binary data should contain a 2nd comment line followed by 4 bytes with values > 127
memory.WriteText("%");
memory.WriteByte(169);
memory.WriteByte(205);
memory.WriteByte(196);
memory.WriteByte(210);
memory.WriteNewLine();
// Body
foreach (var font in fonts)
{
var fontObj = font.Value.FontProgram.WriteFont(font.Value.FontKey.Name, memory, context);
fontsWritten.Add(font.Key, fontObj);
}
foreach (var image in images)
{
var streamToken = new StreamToken(image.Value.StreamDictionary, image.Value.StreamData);
context.WriteObject(memory, streamToken, image.Value.ObjectNumber);
}
var procSet = new List <NameToken>
{
NameToken.Create("PDF"),
NameToken.Text,
NameToken.ImageB,
NameToken.ImageC,
NameToken.ImageI
};
var resources = new Dictionary <NameToken, IToken>
{
{ NameToken.ProcSet, new ArrayToken(procSet) }
};
if (fontsWritten.Count > 0)
{
var fontsDictionary = new DictionaryToken(fontsWritten.Select(x => (fonts[x.Key].FontKey.Name, (IToken) new IndirectReferenceToken(x.Value.Number)))
.ToDictionary(x => x.Item1, x => x.Item2));
var fontsDictionaryRef = context.WriteObject(memory, fontsDictionary);
resources.Add(NameToken.Font, new IndirectReferenceToken(fontsDictionaryRef.Number));
}
var reserved = context.ReserveNumber();
var parentIndirect = new IndirectReferenceToken(new IndirectReference(reserved, 0));
var pageReferences = new List <IndirectReferenceToken>();
foreach (var page in pages)
{
var individualResources = new Dictionary <NameToken, IToken>(resources);
var pageDictionary = new Dictionary <NameToken, IToken>
{
{ NameToken.Type, NameToken.Page },
{ NameToken.MediaBox, RectangleToArray(page.Value.PageSize) },
{ NameToken.Parent, parentIndirect }
};
if (page.Value.Resources.Count > 0)
{
foreach (var kvp in page.Value.Resources)
{
// TODO: combine resources if value is dictionary or array, otherwise overwrite.
individualResources[kvp.Key] = kvp.Value;
}
}
pageDictionary[NameToken.Resources] = new DictionaryToken(individualResources);
if (page.Value.Operations.Count > 0)
{
var contentStream = WriteContentStream(page.Value.Operations);
var contentStreamObj = context.WriteObject(memory, contentStream);
pageDictionary[NameToken.Contents] = new IndirectReferenceToken(contentStreamObj.Number);
}
var pageRef = context.WriteObject(memory, new DictionaryToken(pageDictionary));
pageReferences.Add(new IndirectReferenceToken(pageRef.Number));
}
var pagesDictionaryData = new Dictionary <NameToken, IToken>
{
{ NameToken.Type, NameToken.Pages },
{ NameToken.Kids, new ArrayToken(pageReferences) },
{ NameToken.Count, new NumericToken(pageReferences.Count) }
};
var pagesDictionary = new DictionaryToken(pagesDictionaryData);
var pagesRef = context.WriteObject(memory, pagesDictionary, reserved);
var catalogDictionary = new Dictionary <NameToken, IToken>
{
{ NameToken.Type, NameToken.Catalog },
{ NameToken.Pages, new IndirectReferenceToken(pagesRef.Number) }
};
if (ArchiveStandard != PdfAStandard.None)
{
Func <IToken, ObjectToken> writerFunc = x => context.WriteObject(memory, x);
PdfABaselineRuleBuilder.Obey(catalogDictionary, writerFunc, DocumentInformation, ArchiveStandard);
switch (ArchiveStandard)
{
case PdfAStandard.A1A:
PdfA1ARuleBuilder.Obey(catalogDictionary);
break;
case PdfAStandard.A2B:
break;
case PdfAStandard.A2A:
PdfA1ARuleBuilder.Obey(catalogDictionary);
break;
}
}
var catalog = new DictionaryToken(catalogDictionary);
var catalogRef = context.WriteObject(memory, catalog);
var informationReference = default(IndirectReference?);
if (IncludeDocumentInformation)
{
var informationDictionary = DocumentInformation.ToDictionary();
if (informationDictionary.Count > 0)
{
var dictionary = new DictionaryToken(informationDictionary);
informationReference = context.WriteObject(memory, dictionary).Number;
}
}
TokenWriter.WriteCrossReferenceTable(context.ObjectOffsets, catalogRef, memory, informationReference);
return(memory.ToArray());
}
}
public void CompletePdf(IndirectReferenceToken catalogReference, IndirectReferenceToken documentInformationReference = null)
{
TokenWriter.WriteCrossReferenceTable(offsets, catalogReference.Data, Stream, documentInformationReference?.Data);
}
public byte[] Build()
{
var context = new BuilderContext();
var fontsWritten = new Dictionary <Guid, ObjectToken>();
using (var memory = new MemoryStream())
{
// Header
WriteString("%PDF-1.7", memory);
// Body
foreach (var font in fonts)
{
var fontObj = font.Value.FontProgram.WriteFont(font.Value.FontKey.Name, memory, context);
fontsWritten.Add(font.Key, fontObj);
}
var resources = new Dictionary <NameToken, IToken>
{
{ NameToken.ProcSet, new ArrayToken(new [] { NameToken.Create("PDF"), NameToken.Create("Text") }) }
};
if (fontsWritten.Count > 0)
{
var fontsDictionary = new DictionaryToken(fontsWritten.Select(x => (fonts[x.Key].FontKey.Name, (IToken) new IndirectReferenceToken(x.Value.Number)))
.ToDictionary(x => x.Item1, x => x.Item2));
var fontsDictionaryRef = context.WriteObject(memory, fontsDictionary);
resources.Add(NameToken.Font, new IndirectReferenceToken(fontsDictionaryRef.Number));
}
var pageReferences = new List <IndirectReferenceToken>();
foreach (var page in pages)
{
var pageDictionary = new Dictionary <NameToken, IToken>
{
{ NameToken.Type, NameToken.Page },
{
NameToken.Resources,
new DictionaryToken(resources)
},
{ NameToken.MediaBox, RectangleToArray(page.Value.PageSize) }
};
if (page.Value.Operations.Count > 0)
{
var contentStream = WriteContentStream(page.Value.Operations);
var contentStreamObj = context.WriteObject(memory, contentStream);
pageDictionary[NameToken.Contents] = new IndirectReferenceToken(contentStreamObj.Number);
}
var pageRef = context.WriteObject(memory, new DictionaryToken(pageDictionary));
pageReferences.Add(new IndirectReferenceToken(pageRef.Number));
}
var pagesDictionary = new DictionaryToken(new Dictionary <NameToken, IToken>
{
{ NameToken.Type, NameToken.Pages },
{ NameToken.Kids, new ArrayToken(pageReferences) },
{ NameToken.Count, new NumericToken(1) }
});
var pagesRef = context.WriteObject(memory, pagesDictionary);
var catalog = new DictionaryToken(new Dictionary <NameToken, IToken>
{
{ NameToken.Type, NameToken.Catalog },
{ NameToken.Pages, new IndirectReferenceToken(pagesRef.Number) }
});
var catalogRef = context.WriteObject(memory, catalog);
TokenWriter.WriteCrossReferenceTable(context.ObjectOffsets, catalogRef, memory);
return(memory.ToArray());
}
}
public byte[] Build()
{
var objectLocations = new Dictionary <IndirectReference, long>();
var fontsWritten = new Dictionary <Guid, ObjectToken>();
var number = 1;
using (var memory = new MemoryStream())
{
// Header
WriteString("%PDF-1.7", memory);
// Body
foreach (var font in fonts)
{
var widths = new ArrayToken(new[] { new NumericToken(0), new NumericToken(255) });
var widthsObj = WriteObject(widths, memory, objectLocations, ref number);
// TODO
// var descriptorRef = new IndirectReference(number++, 0);
var dictionary = new DictionaryToken(new Dictionary <IToken, IToken>
{
{ NameToken.Type, NameToken.Font },
{ NameToken.Subtype, NameToken.TrueType },
{ NameToken.FirstChar, new NumericToken(0) },
{ NameToken.LastChar, new NumericToken(255) },
{ NameToken.Encoding, NameToken.WinAnsiEncoding },
{ NameToken.Widths, widthsObj },
//{ NameToken.FontDesc, new IndirectReferenceToken(descriptorRef) }
});
var fontObj = WriteObject(dictionary, memory, objectLocations, ref number);
fontsWritten.Add(font.Key, fontObj);
}
var resources = new Dictionary <IToken, IToken>
{
{ NameToken.ProcSet, new ArrayToken(new [] { NameToken.Create("PDF"), NameToken.Create("Text") }) }
};
if (fontsWritten.Count > 0)
{
var fontsDictionary = new DictionaryToken(fontsWritten.Select(x => ((IToken)fonts[x.Key].FontKey.Name, (IToken) new IndirectReferenceToken(x.Value.Number)))
.ToDictionary(x => x.Item1, x => x.Item2));
var fontsDictionaryRef = WriteObject(fontsDictionary, memory, objectLocations, ref number);
resources.Add(NameToken.Font, new IndirectReferenceToken(fontsDictionaryRef.Number));
}
var page = new DictionaryToken(new Dictionary <IToken, IToken>
{
{ NameToken.Type, NameToken.Page },
{
NameToken.Resources,
new DictionaryToken(resources)
},
{ NameToken.MediaBox, RectangleToArray(pages[1].PageSize) }
});
var pageRef = WriteObject(page, memory, objectLocations, ref number);
var pagesDictionary = new DictionaryToken(new Dictionary <IToken, IToken>
{
{ NameToken.Type, NameToken.Pages },
{ NameToken.Kids, new ArrayToken(new [] { new IndirectReferenceToken(pageRef.Number) }) },
{ NameToken.Count, new NumericToken(1) }
});
var pagesRef = WriteObject(pagesDictionary, memory, objectLocations, ref number);
var catalog = new DictionaryToken(new Dictionary <IToken, IToken>
{
{ NameToken.Type, NameToken.Catalog },
{ NameToken.Pages, new IndirectReferenceToken(pagesRef.Number) }
});
var catalogRef = WriteObject(catalog, memory, objectLocations, ref number);
TokenWriter.WriteCrossReferenceTable(objectLocations, catalogRef, memory);
return(memory.ToArray());
}
}