public EmbeddedFile(PDF pdf, String fileName, Stream stream, bool compress)
{
this.fileName = fileName;
MemoryStream baos = new MemoryStream();
byte[] buf = new byte[4096];
int number;
while ((number = stream.Read(buf, 0, buf.Length)) > 0)
{
baos.Write(buf, 0, number);
}
stream.Dispose();
if (compress)
{
buf = baos.ToArray();
baos = new MemoryStream();
DeflaterOutputStream dos = new DeflaterOutputStream(baos);
dos.Write(buf, 0, buf.Length);
}
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /EmbeddedFile\n");
if (compress)
{
pdf.Append("/Filter /FlateDecode\n");
}
pdf.Append("/Length ");
pdf.Append(baos.Length);
pdf.Append("\n");
pdf.Append(">>\n");
pdf.Append("stream\n");
pdf.Append(baos);
pdf.Append("\nendstream\n");
pdf.Endobj();
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Filespec\n");
pdf.Append("/F (");
pdf.Append(fileName);
pdf.Append(")\n");
pdf.Append("/EF <</F ");
pdf.Append(pdf.GetObjNumber() - 1);
pdf.Append(" 0 R>>\n");
pdf.Append(">>\n");
pdf.Endobj();
this.objNumber = pdf.GetObjNumber();
}
/**
* Constructor for the 14 standard fonts.
* Creates a font object and adds it to the PDF.
*
* <pre>
* Examples:
* Font font1 = new Font(pdf, CoreFont.HELVETICA);
* Font font2 = new Font(pdf, CoreFont.TIMES_ITALIC);
* Font font3 = new Font(pdf, CoreFont.ZAPF_DINGBATS);
* ...
* </pre>
*
* @param pdf the PDF to add this font to.
* @param coreFont the core font. Must be one the names defined in the CoreFont class.
*/
public Font(PDF pdf, CoreFont coreFont)
{
StandardFont font = StandardFont.GetInstance(coreFont);
this.isCoreFont = true;
this.name = font.name;
this.bBoxLLx = font.bBoxLLx;
this.bBoxLLy = font.bBoxLLy;
this.bBoxURx = font.bBoxURx;
this.bBoxURy = font.bBoxURy;
this.metrics = font.metrics;
this.fontUnderlinePosition = font.underlinePosition;
this.fontUnderlineThickness = font.underlineThickness;
this.fontAscent = font.bBoxURy;
this.fontDescent = font.bBoxLLy;
SetSize(size);
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Font\n");
pdf.Append("/Subtype /Type1\n");
pdf.Append("/BaseFont /");
pdf.Append(this.name);
pdf.Append('\n');
if (!this.name.Equals("Symbol") && !this.name.Equals("ZapfDingbats"))
{
pdf.Append("/Encoding /WinAnsiEncoding\n");
}
pdf.Append(">>\n");
pdf.Endobj();
objNumber = pdf.GetObjNumber();
pdf.fonts.Add(this);
}
internal static void Register(
PDF pdf,
Font font,
Stream inputStream)
{
GetFontData(font, inputStream);
EmbedFontFile(pdf, font, inputStream);
AddFontDescriptorObject(pdf, font);
AddCIDFontDictionaryObject(pdf, font);
AddToUnicodeCMapObject(pdf, font);
// Type0 Font Dictionary
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Font\n");
pdf.Append("/Subtype /Type0\n");
pdf.Append("/BaseFont /");
pdf.Append(font.name);
pdf.Append('\n');
pdf.Append("/Encoding /Identity-H\n");
pdf.Append("/DescendantFonts [");
pdf.Append(font.cidFontDictObjNumber);
pdf.Append(" 0 R]\n");
pdf.Append("/ToUnicode ");
pdf.Append(font.toUnicodeCMapObjNumber);
pdf.Append(" 0 R\n");
pdf.Append(">>\n");
pdf.Endobj();
font.objNumber = pdf.GetObjNumber();
pdf.fonts.Add(font);
}
private void AddSoftMask(
PDF pdf,
byte[] data,
String colorSpace,
int bitsPerComponent)
{
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /XObject\n");
pdf.Append("/Subtype /Image\n");
pdf.Append("/Filter /FlateDecode\n");
pdf.Append("/Width ");
pdf.Append((int)w);
pdf.Append('\n');
pdf.Append("/Height ");
pdf.Append((int)h);
pdf.Append('\n');
pdf.Append("/ColorSpace /");
pdf.Append(colorSpace);
pdf.Append('\n');
pdf.Append("/BitsPerComponent ");
pdf.Append(bitsPerComponent);
pdf.Append('\n');
pdf.Append("/Length ");
pdf.Append(data.Length);
pdf.Append('\n');
pdf.Append(">>\n");
pdf.Append("stream\n");
pdf.Append(data, 0, data.Length);
pdf.Append("\nendstream\n");
pdf.Endobj();
objNumber = pdf.GetObjNumber();
}
private void AddImage(
PDF pdf,
byte[] data,
byte[] alpha,
int imageType,
String colorSpace,
int bitsPerComponent)
{
if (alpha != null)
{
AddSoftMask(pdf, alpha, "DeviceGray", bitsPerComponent);
}
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /XObject\n");
pdf.Append("/Subtype /Image\n");
if (imageType == ImageType.JPG)
{
pdf.Append("/Filter /DCTDecode\n");
}
else if (imageType == ImageType.PNG || imageType == ImageType.BMP)
{
pdf.Append("/Filter /FlateDecode\n");
if (alpha != null)
{
pdf.Append("/SMask ");
pdf.Append(objNumber);
pdf.Append(" 0 R\n");
}
}
pdf.Append("/Width ");
pdf.Append((int)w);
pdf.Append('\n');
pdf.Append("/Height ");
pdf.Append((int)h);
pdf.Append('\n');
pdf.Append("/ColorSpace /");
pdf.Append(colorSpace);
pdf.Append('\n');
pdf.Append("/BitsPerComponent ");
pdf.Append(bitsPerComponent);
pdf.Append('\n');
if (colorSpace.Equals("DeviceCMYK"))
{
// If the image was created with Photoshop - invert the colors:
pdf.Append("/Decode [1.0 0.0 1.0 0.0 1.0 0.0 1.0 0.0]\n");
}
pdf.Append("/Length ");
pdf.Append(data.Length);
pdf.Append('\n');
pdf.Append(">>\n");
pdf.Append("stream\n");
pdf.Append(data, 0, data.Length);
pdf.Append("\nendstream\n");
pdf.Endobj();
pdf.images.Add(this);
objNumber = pdf.GetObjNumber();
}
// Creates new image from an existing PDF object
public Image(PDF pdf, PDFobj obj)
{
w = float.Parse(obj.GetValue("/Width"));
h = float.Parse(obj.GetValue("/Height"));
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /XObject\n");
pdf.Append("/Subtype /Image\n");
pdf.Append("/Filter ");
pdf.Append(obj.GetValue("/Filter"));
pdf.Append("\n");
pdf.Append("/Width ");
pdf.Append(w);
pdf.Append('\n');
pdf.Append("/Height ");
pdf.Append(h);
pdf.Append('\n');
String colorSpace = obj.GetValue("/ColorSpace");
if (!colorSpace.Equals(""))
{
pdf.Append("/ColorSpace ");
pdf.Append(colorSpace);
pdf.Append("\n");
}
pdf.Append("/BitsPerComponent ");
pdf.Append(obj.GetValue("/BitsPerComponent"));
pdf.Append("\n");
String decodeParms = obj.GetValue("/DecodeParms");
if (!decodeParms.Equals(""))
{
pdf.Append("/DecodeParms ");
pdf.Append(decodeParms);
pdf.Append("\n");
}
String imageMask = obj.GetValue("/ImageMask");
if (!imageMask.Equals(""))
{
pdf.Append("/ImageMask ");
pdf.Append(imageMask);
pdf.Append("\n");
}
pdf.Append("/Length ");
pdf.Append(obj.stream.Length);
pdf.Append('\n');
pdf.Append(">>\n");
pdf.Append("stream\n");
pdf.Append(obj.stream, 0, obj.stream.Length);
pdf.Append("\nendstream\n");
pdf.Endobj();
pdf.images.Add(this);
objNumber = pdf.GetObjNumber();
}
private static void AddFontDescriptorObject(PDF pdf, Font font)
{
foreach (Font f in pdf.fonts)
{
if (f.fontDescriptorObjNumber != 0 && f.name.Equals(font.name))
{
font.fontDescriptorObjNumber = f.fontDescriptorObjNumber;
return;
}
}
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /FontDescriptor\n");
pdf.Append("/FontName /");
pdf.Append(font.name);
pdf.Append('\n');
if (font.cff)
{
pdf.Append("/FontFile3 ");
}
else
{
pdf.Append("/FontFile2 ");
}
pdf.Append(font.fileObjNumber);
pdf.Append(" 0 R\n");
pdf.Append("/Flags 32\n");
pdf.Append("/FontBBox [");
pdf.Append(font.bBoxLLx);
pdf.Append(' ');
pdf.Append(font.bBoxLLy);
pdf.Append(' ');
pdf.Append(font.bBoxURx);
pdf.Append(' ');
pdf.Append(font.bBoxURy);
pdf.Append("]\n");
pdf.Append("/Ascent ");
pdf.Append(font.ascent);
pdf.Append('\n');
pdf.Append("/Descent ");
pdf.Append(font.descent);
pdf.Append('\n');
pdf.Append("/ItalicAngle 0\n");
pdf.Append("/CapHeight ");
pdf.Append(font.capHeight);
pdf.Append('\n');
pdf.Append("/StemV 79\n");
pdf.Append(">>\n");
pdf.Endobj();
font.fontDescriptorObjNumber = pdf.GetObjNumber();
}
private static void EmbedFontFile(PDF pdf, Font font, Stream inputStream)
{
// Check if the font file is already embedded
foreach (Font f in pdf.fonts)
{
if (f.fileObjNumber != 0 && f.name.Equals(font.name))
{
font.fileObjNumber = f.fileObjNumber;
return;
}
}
int metadataObjNumber = pdf.AddMetadataObject(font.info, true);
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Metadata ");
pdf.Append(metadataObjNumber);
pdf.Append(" 0 R\n");
if (font.cff)
{
pdf.Append("/Subtype /CIDFontType0C\n");
}
pdf.Append("/Filter /FlateDecode\n");
pdf.Append("/Length ");
pdf.Append(font.compressedSize);
pdf.Append("\n");
if (!font.cff)
{
pdf.Append("/Length1 ");
pdf.Append(font.uncompressedSize);
pdf.Append('\n');
}
pdf.Append(">>\n");
pdf.Append("stream\n");
byte[] buf = new byte[4096];
int len;
while ((len = inputStream.Read(buf, 0, buf.Length)) > 0)
{
pdf.Append(buf, 0, len);
}
inputStream.Dispose();
pdf.Append("\nendstream\n");
pdf.Endobj();
font.fileObjNumber = pdf.GetObjNumber();
}
private static void AddCIDFontDictionaryObject(PDF pdf, Font font)
{
foreach (Font f in pdf.fonts)
{
if (f.cidFontDictObjNumber != 0 && f.name.Equals(font.name))
{
font.cidFontDictObjNumber = f.cidFontDictObjNumber;
return;
}
}
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Font\n");
if (font.cff)
{
pdf.Append("/Subtype /CIDFontType0\n");
}
else
{
pdf.Append("/Subtype /CIDFontType2\n");
}
pdf.Append("/BaseFont /");
pdf.Append(font.name);
pdf.Append('\n');
pdf.Append("/CIDSystemInfo <</Registry (Adobe) /Ordering (Identity) /Supplement 0>>\n");
pdf.Append("/FontDescriptor ");
pdf.Append(font.fontDescriptorObjNumber);
pdf.Append(" 0 R\n");
pdf.Append("/DW ");
pdf.Append((int)
((1000f / font.unitsPerEm) * font.advanceWidth[0]));
pdf.Append('\n');
pdf.Append("/W [0[\n");
for (int i = 0; i < font.advanceWidth.Length; i++)
{
pdf.Append((int)
((1000f / font.unitsPerEm) * font.advanceWidth[i]));
pdf.Append(' ');
}
pdf.Append("]]\n");
pdf.Append("/CIDToGIDMap /Identity\n");
pdf.Append(">>\n");
pdf.Endobj();
font.cidFontDictObjNumber = pdf.GetObjNumber();
}
// Constructor for CJK fonts
public Font(PDF pdf, String fontName)
{
this.name = fontName;
this.isCJK = true;
this.firstChar = 0x0020;
this.lastChar = 0xFFEE;
this.ascent = this.size;
this.descent = this.size / 4;
this.bodyHeight = this.ascent + this.descent;
// Font Descriptor
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /FontDescriptor\n");
pdf.Append("/FontName /");
pdf.Append(fontName);
pdf.Append('\n');
pdf.Append("/Flags 4\n");
pdf.Append("/FontBBox [0 0 0 0]\n");
pdf.Append(">>\n");
pdf.Endobj();
// CIDFont Dictionary
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Font\n");
pdf.Append("/Subtype /CIDFontType0\n");
pdf.Append("/BaseFont /");
pdf.Append(fontName);
pdf.Append('\n');
pdf.Append("/FontDescriptor ");
pdf.Append(pdf.GetObjNumber() - 1);
pdf.Append(" 0 R\n");
pdf.Append("/CIDSystemInfo <<\n");
pdf.Append("/Registry (Adobe)\n");
if (fontName.StartsWith("AdobeMingStd"))
{
pdf.Append("/Ordering (CNS1)\n");
pdf.Append("/Supplement 4\n");
}
else if (fontName.StartsWith("AdobeSongStd") ||
fontName.StartsWith("STHeitiSC"))
{
pdf.Append("/Ordering (GB1)\n");
pdf.Append("/Supplement 4\n");
}
else if (fontName.StartsWith("KozMinPro"))
{
pdf.Append("/Ordering (Japan1)\n");
pdf.Append("/Supplement 4\n");
}
else if (fontName.StartsWith("AdobeMyungjoStd"))
{
pdf.Append("/Ordering (Korea1)\n");
pdf.Append("/Supplement 1\n");
}
else
{
throw new Exception("Unsupported font: " + fontName);
}
pdf.Append(">>\n");
pdf.Append(">>\n");
pdf.Endobj();
// Type0 Font Dictionary
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Font\n");
pdf.Append("/Subtype /Type0\n");
pdf.Append("/BaseFont /");
if (fontName.StartsWith("AdobeMingStd"))
{
pdf.Append(fontName + "-UniCNS-UTF16-H\n");
pdf.Append("/Encoding /UniCNS-UTF16-H\n");
}
else if (fontName.StartsWith("AdobeSongStd") ||
fontName.StartsWith("STHeitiSC"))
{
pdf.Append(fontName + "-UniGB-UTF16-H\n");
pdf.Append("/Encoding /UniGB-UTF16-H\n");
}
else if (fontName.StartsWith("KozMinPro"))
{
pdf.Append(fontName + "-UniJIS-UCS2-H\n");
pdf.Append("/Encoding /UniJIS-UCS2-H\n");
}
else if (fontName.StartsWith("AdobeMyungjoStd"))
{
pdf.Append(fontName + "-UniKS-UCS2-H\n");
pdf.Append("/Encoding /UniKS-UCS2-H\n");
}
else
{
throw new Exception("Unsupported font: " + fontName);
}
pdf.Append("/DescendantFonts [");
pdf.Append(pdf.GetObjNumber() - 1);
pdf.Append(" 0 R]\n");
pdf.Append(">>\n");
pdf.Endobj();
objNumber = pdf.GetObjNumber();
pdf.fonts.Add(this);
}
private void AddImage(PDF pdf, Stream inputStream)
{
w = GetInt(inputStream); // Width
h = GetInt(inputStream); // Height
byte c = (byte)inputStream.ReadByte(); // Color Space
byte a = (byte)inputStream.ReadByte(); // Alpha
if (a != 0)
{
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /XObject\n");
pdf.Append("/Subtype /Image\n");
pdf.Append("/Filter /FlateDecode\n");
pdf.Append("/Width ");
pdf.Append(w);
pdf.Append('\n');
pdf.Append("/Height ");
pdf.Append(h);
pdf.Append('\n');
pdf.Append("/ColorSpace /DeviceGray\n");
pdf.Append("/BitsPerComponent 8\n");
int length = GetInt(inputStream);
pdf.Append("/Length ");
pdf.Append(length);
pdf.Append('\n');
pdf.Append(">>\n");
pdf.Append("stream\n");
byte[] buf1 = new byte[length];
inputStream.Read(buf1, 0, length);
pdf.Append(buf1, 0, length);
pdf.Append("\nendstream\n");
pdf.Endobj();
objNumber = pdf.GetObjNumber();
}
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /XObject\n");
pdf.Append("/Subtype /Image\n");
pdf.Append("/Filter /FlateDecode\n");
if (a != 0)
{
pdf.Append("/SMask ");
pdf.Append(objNumber);
pdf.Append(" 0 R\n");
}
pdf.Append("/Width ");
pdf.Append(w);
pdf.Append('\n');
pdf.Append("/Height ");
pdf.Append(h);
pdf.Append('\n');
pdf.Append("/ColorSpace /");
if (c == 1)
{
pdf.Append("DeviceGray");
}
else if (c == 3 || c == 6)
{
pdf.Append("DeviceRGB");
}
pdf.Append('\n');
pdf.Append("/BitsPerComponent 8\n");
pdf.Append("/Length ");
pdf.Append(GetInt(inputStream));
pdf.Append('\n');
pdf.Append(">>\n");
pdf.Append("stream\n");
byte[] buf2 = new byte[4096];
int count;
while ((count = inputStream.Read(buf2, 0, buf2.Length)) > 0)
{
pdf.Append(buf2, 0, count);
}
pdf.Append("\nendstream\n");
pdf.Endobj();
pdf.images.Add(this);
objNumber = pdf.GetObjNumber();
}
private static void AddToUnicodeCMapObject(PDF pdf, Font font)
{
foreach (Font f in pdf.fonts)
{
if (f.toUnicodeCMapObjNumber != 0 && f.name.Equals(font.name))
{
font.toUnicodeCMapObjNumber = f.toUnicodeCMapObjNumber;
return;
}
}
StringBuilder sb = new StringBuilder();
sb.Append("/CIDInit /ProcSet findresource begin\n");
sb.Append("12 dict begin\n");
sb.Append("begincmap\n");
sb.Append("/CIDSystemInfo <</Registry (Adobe) /Ordering (Identity) /Supplement 0>> def\n");
sb.Append("/CMapName /Adobe-Identity def\n");
sb.Append("/CMapType 2 def\n");
sb.Append("1 begincodespacerange\n");
sb.Append("<0000> <FFFF>\n");
sb.Append("endcodespacerange\n");
List <String> list = new List <String>();
StringBuilder buf = new StringBuilder();
for (int cid = 0; cid <= 0xffff; cid++)
{
int gid = font.unicodeToGID[cid];
if (gid > 0)
{
buf.Append('<');
buf.Append(ToHexString(gid));
buf.Append("> <");
buf.Append(ToHexString(cid));
buf.Append(">\n");
list.Add(buf.ToString());
buf.Length = 0;
if (list.Count == 100)
{
WriteListToBuffer(sb, list);
}
}
}
if (list.Count > 0)
{
WriteListToBuffer(sb, list);
}
sb.Append("endcmap\n");
sb.Append("CMapName currentdict /CMap defineresource pop\n");
sb.Append("end\nend");
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Length ");
pdf.Append(sb.Length);
pdf.Append("\n");
pdf.Append(">>\n");
pdf.Append("stream\n");
pdf.Append(sb.ToString());
pdf.Append("\nendstream\n");
pdf.Endobj();
font.toUnicodeCMapObjNumber = pdf.GetObjNumber();
}
