public override void ToPdf(PdfWriter writer, Stream os) { if (inputStream != null && compressed) Put(PdfName.FILTER, PdfName.FLATEDECODE); PdfEncryption crypto = null; if (writer != null) crypto = writer.Encryption; if (crypto != null) { PdfObject filter = Get(PdfName.FILTER); if (filter != null) { if (PdfName.CRYPT.Equals(filter)) crypto = null; else if (filter.IsArray()) { PdfArray a = ((PdfArray)filter); if (a.Size > 0 && PdfName.CRYPT.Equals(a[0])) crypto = null; } } } PdfObject nn = Get(PdfName.LENGTH); if (crypto != null && nn != null && nn.IsNumber()) { int sz = ((PdfNumber)nn).IntValue; Put(PdfName.LENGTH, new PdfNumber(crypto.CalculateStreamSize(sz))); SuperToPdf(writer, os); Put(PdfName.LENGTH, nn); } else SuperToPdf(writer, os); os.Write(STARTSTREAM, 0, STARTSTREAM.Length); if (inputStream != null) { rawLength = 0; ZDeflaterOutputStream def = null; OutputStreamCounter osc = new OutputStreamCounter(os); OutputStreamEncryption ose = null; Stream fout = osc; if (crypto != null && !crypto.IsEmbeddedFilesOnly()) fout = ose = crypto.GetEncryptionStream(fout); if (compressed) fout = def = new ZDeflaterOutputStream(fout, compressionLevel); byte[] buf = new byte[4192]; while (true) { int n = inputStream.Read(buf, 0, buf.Length); if (n <= 0) break; fout.Write(buf, 0, n); rawLength += n; } if (def != null) def.Finish(); if (ose != null) ose.Finish(); inputStreamLength = osc.Counter; } else { if (crypto != null && !crypto.IsEmbeddedFilesOnly()) { byte[] b; if (streamBytes != null) { b = crypto.EncryptByteArray(streamBytes.ToArray()); } else { b = crypto.EncryptByteArray(bytes); } os.Write(b, 0, b.Length); } else { if (streamBytes != null) streamBytes.WriteTo(os); else os.Write(bytes, 0, bytes.Length); } } os.Write(ENDSTREAM, 0, ENDSTREAM.Length); }
public override void ToPdf(PdfWriter writer, Stream os) { if (inputStream != null && compressed) { Put(PdfName.FILTER, PdfName.FLATEDECODE); } PdfEncryption crypto = null; if (writer != null) { crypto = writer.Encryption; } if (crypto != null) { PdfObject filter = Get(PdfName.FILTER); if (filter != null) { if (PdfName.CRYPT.Equals(filter)) { crypto = null; } else if (filter.IsArray()) { PdfArray a = ((PdfArray)filter); if (a.Size > 0 && PdfName.CRYPT.Equals(a[0])) { crypto = null; } } } } PdfObject nn = Get(PdfName.LENGTH); if (crypto != null && nn != null && nn.IsNumber()) { int sz = ((PdfNumber)nn).IntValue; Put(PdfName.LENGTH, new PdfNumber(crypto.CalculateStreamSize(sz))); SuperToPdf(writer, os); Put(PdfName.LENGTH, nn); } else { SuperToPdf(writer, os); } os.Write(STARTSTREAM, 0, STARTSTREAM.Length); if (inputStream != null) { rawLength = 0; ZDeflaterOutputStream def = null; OutputStreamCounter osc = new OutputStreamCounter(os); OutputStreamEncryption ose = null; Stream fout = osc; if (crypto != null && !crypto.IsEmbeddedFilesOnly()) { fout = ose = crypto.GetEncryptionStream(fout); } if (compressed) { fout = def = new ZDeflaterOutputStream(fout, compressionLevel); } byte[] buf = new byte[4192]; while (true) { int n = inputStream.Read(buf, 0, buf.Length); if (n <= 0) { break; } fout.Write(buf, 0, n); rawLength += n; } if (def != null) { def.Finish(); } if (ose != null) { ose.Finish(); } inputStreamLength = osc.Counter; } else { if (crypto != null && !crypto.IsEmbeddedFilesOnly()) { byte[] b; if (streamBytes != null) { b = crypto.EncryptByteArray(streamBytes.ToArray()); } else { b = crypto.EncryptByteArray(bytes); } os.Write(b, 0, b.Length); } else { if (streamBytes != null) { streamBytes.WriteTo(os); } else { os.Write(bytes, 0, bytes.Length); } } } os.Write(ENDSTREAM, 0, ENDSTREAM.Length); }
/** * Writes the header to the OutputStreamCounter. * @throws IOException */ public void WriteHeader(OutputStreamCounter os) { if (appendmode) { os.Write(HEADER[0], 0, HEADER[0].Length); } else { os.Write(HEADER[1], 0, HEADER[1].Length); os.Write(GetVersionAsByteArray(header_version), 0, GetVersionAsByteArray(header_version).Length); os.Write(HEADER[2], 0, HEADER[2].Length); headerWasWritten = true; } }
/// <summary> /// Constructs a DocWriter. /// </summary> /// <param name="document">The Document that has to be written</param> /// <param name="os">The Stream the writer has to write to.</param> protected DocWriter(Document document, Stream os) { this.document = document; this.os = new OutputStreamCounter(os); }