public void AddImg() { Stream imageStream = new MemoryStream(); string mpath = string.Format("{0}{1}{2}.jpg", SavePath, DateTime.Now.ToString("HH"), Guid.NewGuid().ToString()); chLine.SaveImage(imageStream, System.Web.UI.DataVisualization.Charting.ChartImageFormat.Jpeg); System.Drawing.Image img = System.Drawing.Image.FromStream(imageStream); img.Save(mpath, System.Drawing.Imaging.ImageFormat.Jpeg); Jpeg jpg = new Jpeg(new Uri(mpath)); document.Add(jpg); }
/// <summary> /// Signs a PDF document using iTextSharp library /// </summary> /// <param name="sourceDocument">The path of the source pdf document which is to be signed</param> /// <param name="destinationDocument">The path at which the signed pdf document should be generated</param> /// <param name="privateKeyStream">A Stream containing the private/public key in .pfx format which would be used to sign the document</param> /// <param name="pfxKeyPass">The password for the private key</param> /// <param name="reasonForSigning">String describing the reason for signing, would be embedded as part of the signature</param> /// <param name="location">Location where the document was signed, would be embedded as part of the signature</param> public static void SignPdfFile(string sourceDocument, string destinationDocument, SignInfo i) { using (var cpfxFile = new FileStream(i.pfxFilePath, FileMode.Open, FileAccess.Read)) { Pkcs12Store pk12 = new Pkcs12Store(cpfxFile, i.pfxKeyPass.ToCharArray()); string alias = null; foreach (string tAlias in pk12.Aliases) { if (pk12.IsKeyEntry(tAlias)) { alias = tAlias; break; } } var pk = pk12.GetKey(alias).Key; using (var reader = new PdfReader(sourceDocument)) using (var fout = new FileStream(destinationDocument, FileMode.Create, FileAccess.ReadWrite)) using (var stamper = PdfStamper.CreateSignature(reader, fout, '\0')) { stamper.SetEncryption(i.docPass, i.docPass, PdfWriter.ALLOW_SCREENREADERS, PdfWriter.STRENGTH128BITS); var img = new iTextSharp.text.Jpeg(new Uri(i.signImagePath)); PdfSignatureAppearance appearance = stamper.SignatureAppearance; appearance.Image = img; appearance.Reason = i.reasonForSigning; appearance.Location = i.location; const float x = 20, y = 10; appearance.SetVisibleSignature(new iTextSharp.text.Rectangle(x, y, x + img.Width, y + img.Width), 1, "Icsi-Vendor"); IExternalSignature es = new PrivateKeySignature(pk, "SHA-256"); MakeSignature.SignDetached(appearance, es, new X509Certificate[] { pk12.GetCertificate(alias).Certificate }, null, null, null, 0, CryptoStandard.CMS); stamper.Close(); } } }
private void Btnpdfolustur_Click_1(object sender, EventArgs e) { iTextSharp.text.Document pdfdosya = new iTextSharp.text.Document(); //pdf dosyamızı temsil edecek nesnemizi oluşturuyoruz PdfWriter.GetInstance(pdfdosya, new FileStream("C:CSharpPDF.pdf", FileMode.Create)); //pdf dosyamızın yolunu belirledik ve dosyanın açılış biçimi olrarak pdf ayarladık pdfdosya.Open(); //dosyayı aç pdfdosya.AddCreator(txtolusturulan.Text); //oluşturan ismi pdfdosya.AddCreationDate(); //tarih pdfdosya.AddAuthor(txticeriksahibi.Text); //yazarın ismi eklendi pdfdosya.AddHeader(txtustbaslik.Text, "PDF UYGULAMASI OLUŞTUR"); pdfdosya.AddTitle(txtaltbaslik.Text); //başlık ve title eklenmesi Paragraph eklenecekmetin = new Paragraph(txtaciklamametni.Text); pdfdosya.Add(eklenecekmetin); //eklenecek metnimizin dosyaya eklenmesi decimal satir = numaricsatirsayisi.Value; //satir bilgisi decimal sutun = numaricsutunsayisi.Value; //sutun bilgisi iTextSharp.text.Table tablo = new Table((int)sutun, (int)satir); for (int i = 0; i < satir; i++) { for (int j = 0; j < sutun; j++) { Cell hucre = new Cell((i + 1).ToString() + " " + (j + 1).ToString()); hucre.BackgroundColor = iTextSharp.text.Color.RED; tablo.AddCell(hucre, i, j); } } tablo.cellspacing = 5; pdfdosya.Add(tablo); if (txtolusturulan.Text != "") { Uri yol = new Uri(txtolusturulan.Text); iTextSharp.text.Jpeg resim = new iTextSharp.text.Jpeg(yol); resim.ScalePercent((int)numaricsikistirmeorani.Value); pdfdosya.Add(resim); } pdfdosya.Close(); }
protected static Image GetTiffImageColor(TIFFDirectory dir, RandomAccessFileOrArray s) { int predictor = 1; TIFFLZWDecoder lzwDecoder = null; int compression = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_COMPRESSION); switch (compression) { case TIFFConstants.COMPRESSION_NONE: case TIFFConstants.COMPRESSION_LZW: case TIFFConstants.COMPRESSION_PACKBITS: case TIFFConstants.COMPRESSION_DEFLATE: case TIFFConstants.COMPRESSION_ADOBE_DEFLATE: case TIFFConstants.COMPRESSION_OJPEG: case TIFFConstants.COMPRESSION_JPEG: break; default: throw new ArgumentException(MessageLocalization.GetComposedMessage("the.compression.1.is.not.supported", compression)); } int photometric = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_PHOTOMETRIC); switch (photometric) { case TIFFConstants.PHOTOMETRIC_MINISWHITE: case TIFFConstants.PHOTOMETRIC_MINISBLACK: case TIFFConstants.PHOTOMETRIC_RGB: case TIFFConstants.PHOTOMETRIC_SEPARATED: case TIFFConstants.PHOTOMETRIC_PALETTE: break; default: if (compression != TIFFConstants.COMPRESSION_OJPEG && compression != TIFFConstants.COMPRESSION_JPEG) throw new ArgumentException(MessageLocalization.GetComposedMessage("the.photometric.1.is.not.supported", photometric)); break; } float rotation = 0; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_ORIENTATION)) { int rot = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_ORIENTATION); if (rot == TIFFConstants.ORIENTATION_BOTRIGHT || rot == TIFFConstants.ORIENTATION_BOTLEFT) rotation = (float)Math.PI; else if (rot == TIFFConstants.ORIENTATION_LEFTTOP || rot == TIFFConstants.ORIENTATION_LEFTBOT) rotation = (float)(Math.PI / 2.0); else if (rot == TIFFConstants.ORIENTATION_RIGHTTOP || rot == TIFFConstants.ORIENTATION_RIGHTBOT) rotation = -(float)(Math.PI / 2.0); } if (dir.IsTagPresent(TIFFConstants.TIFFTAG_PLANARCONFIG) && dir.GetFieldAsLong(TIFFConstants.TIFFTAG_PLANARCONFIG) == TIFFConstants.PLANARCONFIG_SEPARATE) throw new ArgumentException(MessageLocalization.GetComposedMessage("planar.images.are.not.supported")); int extraSamples = 0; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_EXTRASAMPLES)) extraSamples = 1; int samplePerPixel = 1; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_SAMPLESPERPIXEL)) // 1,3,4 samplePerPixel = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_SAMPLESPERPIXEL); int bitsPerSample = 1; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_BITSPERSAMPLE)) bitsPerSample = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_BITSPERSAMPLE); switch (bitsPerSample) { case 1: case 2: case 4: case 8: break; default: throw new ArgumentException(MessageLocalization.GetComposedMessage("bits.per.sample.1.is.not.supported", bitsPerSample)); } Image img = null; int h = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_IMAGELENGTH); int w = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_IMAGEWIDTH); int dpiX = 0; int dpiY = 0; int resolutionUnit = TIFFConstants.RESUNIT_INCH; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_RESOLUTIONUNIT)) resolutionUnit = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_RESOLUTIONUNIT); dpiX = GetDpi(dir.GetField(TIFFConstants.TIFFTAG_XRESOLUTION), resolutionUnit); dpiY = GetDpi(dir.GetField(TIFFConstants.TIFFTAG_YRESOLUTION), resolutionUnit); int fillOrder = 1; bool reverse = false; TIFFField fillOrderField = dir.GetField(TIFFConstants.TIFFTAG_FILLORDER); if (fillOrderField != null) fillOrder = fillOrderField.GetAsInt(0); reverse = (fillOrder == TIFFConstants.FILLORDER_LSB2MSB); int rowsStrip = h; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_ROWSPERSTRIP)) //another hack for broken tiffs rowsStrip = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_ROWSPERSTRIP); if (rowsStrip <= 0 || rowsStrip > h) rowsStrip = h; long[] offset = GetArrayLongShort(dir, TIFFConstants.TIFFTAG_STRIPOFFSETS); long[] size = GetArrayLongShort(dir, TIFFConstants.TIFFTAG_STRIPBYTECOUNTS); if ((size == null || (size.Length == 1 && (size[0] == 0 || size[0] + offset[0] > s.Length))) && h == rowsStrip) { // some TIFF producers are really lousy, so... size = new long[]{s.Length - (int)offset[0]}; } if (compression == TIFFConstants.COMPRESSION_LZW) { TIFFField predictorField = dir.GetField(TIFFConstants.TIFFTAG_PREDICTOR); if (predictorField != null) { predictor = predictorField.GetAsInt(0); if (predictor != 1 && predictor != 2) { throw new Exception(MessageLocalization.GetComposedMessage("illegal.value.for.predictor.in.tiff.file")); } if (predictor == 2 && bitsPerSample != 8) { throw new Exception(MessageLocalization.GetComposedMessage("1.bit.samples.are.not.supported.for.horizontal.differencing.predictor", bitsPerSample)); } } lzwDecoder = new TIFFLZWDecoder(w, predictor, samplePerPixel); } int rowsLeft = h; MemoryStream stream = null; MemoryStream mstream = null; ZDeflaterOutputStream zip = null; ZDeflaterOutputStream mzip = null; if (extraSamples > 0) { mstream = new MemoryStream(); mzip = new ZDeflaterOutputStream(mstream); } CCITTG4Encoder g4 = null; if (bitsPerSample == 1 && samplePerPixel == 1 && photometric != TIFFConstants.PHOTOMETRIC_PALETTE) { g4 = new CCITTG4Encoder(w); } else { stream = new MemoryStream(); if (compression != TIFFConstants.COMPRESSION_OJPEG && compression != TIFFConstants.COMPRESSION_JPEG) zip = new ZDeflaterOutputStream(stream); } if (compression == TIFFConstants.COMPRESSION_OJPEG) { // Assume that the TIFFTAG_JPEGIFBYTECOUNT tag is optional, since it's obsolete and // is often missing if ((!dir.IsTagPresent(TIFFConstants.TIFFTAG_JPEGIFOFFSET))) { throw new IOException(MessageLocalization.GetComposedMessage("missing.tag.s.for.ojpeg.compression")); } int jpegOffset = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_JPEGIFOFFSET); int jpegLength = s.Length - jpegOffset; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_JPEGIFBYTECOUNT)) { jpegLength = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_JPEGIFBYTECOUNT) + (int)size[0]; } byte[] jpeg = new byte[Math.Min(jpegLength, s.Length - jpegOffset)]; int posFilePointer = s.FilePointer; posFilePointer += jpegOffset; s.Seek(posFilePointer); s.ReadFully(jpeg); img = new Jpeg(jpeg); } else if (compression == TIFFConstants.COMPRESSION_JPEG) { if (size.Length > 1) throw new IOException(MessageLocalization.GetComposedMessage("compression.jpeg.is.only.supported.with.a.single.strip.this.image.has.1.strips", size.Length)); byte[] jpeg = new byte[(int)size[0]]; s.Seek(offset[0]); s.ReadFully(jpeg); img = new Jpeg(jpeg); } else { for (int k = 0; k < offset.Length; ++k) { byte[] im = new byte[(int)size[k]]; s.Seek(offset[k]); s.ReadFully(im); int height = Math.Min(rowsStrip, rowsLeft); byte[] outBuf = null; if (compression != TIFFConstants.COMPRESSION_NONE) outBuf = new byte[(w * bitsPerSample * samplePerPixel + 7) / 8 * height]; if (reverse) TIFFFaxDecoder.ReverseBits(im); switch (compression) { case TIFFConstants.COMPRESSION_DEFLATE: case TIFFConstants.COMPRESSION_ADOBE_DEFLATE: Inflate(im, outBuf); break; case TIFFConstants.COMPRESSION_NONE: outBuf = im; break; case TIFFConstants.COMPRESSION_PACKBITS: DecodePackbits(im, outBuf); break; case TIFFConstants.COMPRESSION_LZW: lzwDecoder.Decode(im, outBuf, height); break; } if (bitsPerSample == 1 && samplePerPixel == 1 && photometric != TIFFConstants.PHOTOMETRIC_PALETTE) { g4.Fax4Encode(outBuf, height); } else { if (extraSamples > 0) ProcessExtraSamples(zip, mzip, outBuf, samplePerPixel, bitsPerSample, w, height); else zip.Write(outBuf, 0, outBuf.Length); } rowsLeft -= rowsStrip; } if (bitsPerSample == 1 && samplePerPixel == 1 && photometric != TIFFConstants.PHOTOMETRIC_PALETTE) { img = Image.GetInstance(w, h, false, Image.CCITTG4, photometric == TIFFConstants.PHOTOMETRIC_MINISBLACK ? Image.CCITT_BLACKIS1 : 0, g4.Close()); } else { zip.Close(); img = new ImgRaw(w, h, samplePerPixel - extraSamples, bitsPerSample, stream.ToArray()); img.Deflated = true; } } img.SetDpi(dpiX, dpiY); if (compression != TIFFConstants.COMPRESSION_OJPEG && compression != TIFFConstants.COMPRESSION_JPEG) { if (dir.IsTagPresent(TIFFConstants.TIFFTAG_ICCPROFILE)) { try { TIFFField fd = dir.GetField(TIFFConstants.TIFFTAG_ICCPROFILE); ICC_Profile icc_prof = ICC_Profile.GetInstance(fd.GetAsBytes()); if (samplePerPixel - extraSamples == icc_prof.NumComponents) img.TagICC = icc_prof; } catch { //empty } } if (dir.IsTagPresent(TIFFConstants.TIFFTAG_COLORMAP)) { TIFFField fd = dir.GetField(TIFFConstants.TIFFTAG_COLORMAP); char[] rgb = fd.GetAsChars(); byte[] palette = new byte[rgb.Length]; int gColor = rgb.Length / 3; int bColor = gColor * 2; for (int k = 0; k < gColor; ++k) { palette[k * 3] = (byte)(rgb[k] >> 8); palette[k * 3 + 1] = (byte)(rgb[k + gColor] >> 8); palette[k * 3 + 2] = (byte)(rgb[k + bColor] >> 8); } PdfArray indexed = new PdfArray(); indexed.Add(PdfName.INDEXED); indexed.Add(PdfName.DEVICERGB); indexed.Add(new PdfNumber(gColor - 1)); indexed.Add(new PdfString(palette)); PdfDictionary additional = new PdfDictionary(); additional.Put(PdfName.COLORSPACE, indexed); img.Additional = additional; } img.OriginalType = Image.ORIGINAL_TIFF; } if (photometric == TIFFConstants.PHOTOMETRIC_MINISWHITE) img.Inverted = true; if (rotation != 0) img.InitialRotation = rotation; if (extraSamples > 0) { mzip.Close(); Image mimg = Image.GetInstance(w, h, 1, bitsPerSample, mstream.ToArray()); mimg.MakeMask(); mimg.Deflated = true; img.ImageMask = mimg; } return img; }
protected static Image GetTiffImageColor(TIFFDirectory dir, RandomAccessFileOrArray s) { int predictor = 1; TIFFLZWDecoder lzwDecoder = null; int compression = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_COMPRESSION); switch (compression) { case TIFFConstants.COMPRESSION_NONE: case TIFFConstants.COMPRESSION_LZW: case TIFFConstants.COMPRESSION_PACKBITS: case TIFFConstants.COMPRESSION_DEFLATE: case TIFFConstants.COMPRESSION_OJPEG: case TIFFConstants.COMPRESSION_JPEG: break; default: throw new ArgumentException("The compression " + compression + " is not supported."); } int photometric = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_PHOTOMETRIC); switch (photometric) { case TIFFConstants.PHOTOMETRIC_MINISWHITE: case TIFFConstants.PHOTOMETRIC_MINISBLACK: case TIFFConstants.PHOTOMETRIC_RGB: case TIFFConstants.PHOTOMETRIC_SEPARATED: case TIFFConstants.PHOTOMETRIC_PALETTE: break; default: if (compression != TIFFConstants.COMPRESSION_OJPEG && compression != TIFFConstants.COMPRESSION_JPEG) throw new ArgumentException("The photometric " + photometric + " is not supported."); break; } float rotation = 0; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_ORIENTATION)) { int rot = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_ORIENTATION); if (rot == TIFFConstants.ORIENTATION_BOTRIGHT || rot == TIFFConstants.ORIENTATION_BOTLEFT) rotation = (float)Math.PI; else if (rot == TIFFConstants.ORIENTATION_LEFTTOP || rot == TIFFConstants.ORIENTATION_LEFTBOT) rotation = (float)(Math.PI / 2.0); else if (rot == TIFFConstants.ORIENTATION_RIGHTTOP || rot == TIFFConstants.ORIENTATION_RIGHTBOT) rotation = -(float)(Math.PI / 2.0); } if (dir.IsTagPresent(TIFFConstants.TIFFTAG_PLANARCONFIG) && dir.GetFieldAsLong(TIFFConstants.TIFFTAG_PLANARCONFIG) == TIFFConstants.PLANARCONFIG_SEPARATE) throw new ArgumentException("Planar images are not supported."); if (dir.IsTagPresent(TIFFConstants.TIFFTAG_EXTRASAMPLES)) throw new ArgumentException("Extra samples are not supported."); int samplePerPixel = 1; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_SAMPLESPERPIXEL)) // 1,3,4 samplePerPixel = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_SAMPLESPERPIXEL); int bitsPerSample = 1; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_BITSPERSAMPLE)) bitsPerSample = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_BITSPERSAMPLE); switch (bitsPerSample) { case 1: case 2: case 4: case 8: break; default: throw new ArgumentException("Bits per sample " + bitsPerSample + " is not supported."); } Image img = null; int h = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_IMAGELENGTH); int w = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_IMAGEWIDTH); int dpiX = 0; int dpiY = 0; int resolutionUnit = TIFFConstants.RESUNIT_INCH; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_RESOLUTIONUNIT)) resolutionUnit = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_RESOLUTIONUNIT); dpiX = GetDpi(dir.GetField(TIFFConstants.TIFFTAG_XRESOLUTION), resolutionUnit); dpiY = GetDpi(dir.GetField(TIFFConstants.TIFFTAG_YRESOLUTION), resolutionUnit); int rowsStrip = h; if (dir.IsTagPresent(TIFFConstants.TIFFTAG_ROWSPERSTRIP)) //another hack for broken tiffs rowsStrip = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_ROWSPERSTRIP); long[] offset = GetArrayLongShort(dir, TIFFConstants.TIFFTAG_STRIPOFFSETS); long[] size = GetArrayLongShort(dir, TIFFConstants.TIFFTAG_STRIPBYTECOUNTS); if (size == null && h == rowsStrip) { // some TIFF producers are really lousy, so... size = new long[]{s.Length - (int)offset[0]}; } if (compression == TIFFConstants.COMPRESSION_LZW) { TIFFField predictorField = dir.GetField(TIFFConstants.TIFFTAG_PREDICTOR); if (predictorField != null) { predictor = predictorField.GetAsInt(0); if (predictor != 1 && predictor != 2) { throw new Exception("Illegal value for Predictor in TIFF file."); } if (predictor == 2 && bitsPerSample != 8) { throw new Exception(bitsPerSample + "-bit samples are not supported for Horizontal differencing Predictor."); } } lzwDecoder = new TIFFLZWDecoder(w, predictor, samplePerPixel); } int rowsLeft = h; MemoryStream stream = null; ZDeflaterOutputStream zip = null; CCITTG4Encoder g4 = null; if (bitsPerSample == 1 && samplePerPixel == 1) { g4 = new CCITTG4Encoder(w); } else { stream = new MemoryStream(); if (compression != TIFFConstants.COMPRESSION_OJPEG && compression != TIFFConstants.COMPRESSION_JPEG) zip = new ZDeflaterOutputStream(stream); } if (compression == TIFFConstants.COMPRESSION_OJPEG) { if ((!dir.IsTagPresent(TIFFConstants.TIFFTAG_JPEGIFOFFSET)) || (!dir.IsTagPresent(TIFFConstants.TIFFTAG_JPEGIFBYTECOUNT))) { throw new IOException("Missing tag(s) for OJPEG compression."); } int jpegOffset = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_JPEGIFOFFSET); int jpegLength = (int)dir.GetFieldAsLong(TIFFConstants.TIFFTAG_JPEGIFBYTECOUNT) + (int)size[0]; byte[] jpeg = new byte[Math.Min(jpegLength, s.Length - jpegOffset)]; int posFilePointer = s.FilePointer; posFilePointer += jpegOffset; s.Seek(posFilePointer); s.ReadFully(jpeg); img = new Jpeg(jpeg); } else if (compression == TIFFConstants.COMPRESSION_JPEG) { if (size.Length > 1) throw new IOException("Compression JPEG is only supported with a single strip. This image has " + size.Length + " strips."); byte[] jpeg = new byte[(int)size[0]]; s.Seek(offset[0]); s.ReadFully(jpeg); img = new Jpeg(jpeg); } else { for (int k = 0; k < offset.Length; ++k) { byte[] im = new byte[(int)size[k]]; s.Seek(offset[k]); s.ReadFully(im); int height = Math.Min(rowsStrip, rowsLeft); byte[] outBuf = null; if (compression != TIFFConstants.COMPRESSION_NONE) outBuf = new byte[(w * bitsPerSample * samplePerPixel + 7) / 8 * height]; switch (compression) { case TIFFConstants.COMPRESSION_DEFLATE: Inflate(im, outBuf); break; case TIFFConstants.COMPRESSION_NONE: outBuf = im; break; case TIFFConstants.COMPRESSION_PACKBITS: DecodePackbits(im, outBuf); break; case TIFFConstants.COMPRESSION_LZW: lzwDecoder.Decode(im, outBuf, height); break; } if (bitsPerSample == 1 && samplePerPixel == 1) { g4.Fax4Encode(outBuf, height); } else { zip.Write(outBuf, 0, outBuf.Length); } rowsLeft -= rowsStrip; } if (bitsPerSample == 1 && samplePerPixel == 1) { img = Image.GetInstance(w, h, false, Image.CCITTG4, photometric == TIFFConstants.PHOTOMETRIC_MINISBLACK ? Image.CCITT_BLACKIS1 : 0, g4.Close()); } else { zip.Close(); img = Image.GetInstance(w, h, samplePerPixel, bitsPerSample, stream.ToArray()); img.Deflated = true; } } img.SetDpi(dpiX, dpiY); if (compression != TIFFConstants.COMPRESSION_OJPEG && compression != TIFFConstants.COMPRESSION_JPEG) { if (dir.IsTagPresent(TIFFConstants.TIFFTAG_ICCPROFILE)) { try { TIFFField fd = dir.GetField(TIFFConstants.TIFFTAG_ICCPROFILE); ICC_Profile icc_prof = ICC_Profile.GetInstance(fd.GetAsBytes()); if (samplePerPixel == icc_prof.NumComponents) img.TagICC = icc_prof; } catch { //empty } } if (dir.IsTagPresent(TIFFConstants.TIFFTAG_COLORMAP)) { TIFFField fd = dir.GetField(TIFFConstants.TIFFTAG_COLORMAP); char[] rgb = fd.GetAsChars(); byte[] palette = new byte[rgb.Length]; int gColor = rgb.Length / 3; int bColor = gColor * 2; for (int k = 0; k < gColor; ++k) { palette[k * 3] = (byte)(rgb[k] >> 8); palette[k * 3 + 1] = (byte)(rgb[k + gColor] >> 8); palette[k * 3 + 2] = (byte)(rgb[k + bColor] >> 8); } PdfArray indexed = new PdfArray(); indexed.Add(PdfName.INDEXED); indexed.Add(PdfName.DEVICERGB); indexed.Add(new PdfNumber(gColor - 1)); indexed.Add(new PdfString(palette)); PdfDictionary additional = new PdfDictionary(); additional.Put(PdfName.COLORSPACE, indexed); img.Additional = additional; } img.OriginalType = Image.ORIGINAL_TIFF; } if (photometric == TIFFConstants.PHOTOMETRIC_MINISWHITE) img.Inverted = true; if (rotation != 0) img.InitialRotation = rotation; return img; }
/// <summary> /// Signs a PDF document using iTextSharp library /// </summary> /// <param name="sourceDocument">The path of the source pdf document which is to be signed</param> /// <param name="destinationDocument">The path at which the signed pdf document should be generated</param> /// <param name="privateKeyStream">A Stream containing the private/public key in .pfx format which would be used to sign the document</param> /// <param name="pfxKeyPass">The password for the private key</param> /// <param name="reasonForSigning">String describing the reason for signing, would be embedded as part of the signature</param> /// <param name="location">Location where the document was signed, would be embedded as part of the signature</param> public void SignPdfFile(string sourceDocument, string destinationDocument, PdfSignInfo info) { using (var cpfxFile = new FileStream(info.pfxFilePath, FileMode.Open, FileAccess.Read)) { Pkcs12Store pk12 = new Pkcs12Store(cpfxFile, info.pfxKeyPass.ToCharArray()); string alias = null; foreach (string tAlias in pk12.Aliases) { if (pk12.IsKeyEntry(tAlias)) { alias = tAlias; break; } } var pk = pk12.GetKey(alias).Key; using (var reader = new PdfReader(sourceDocument)) using (var fout = new FileStream(destinationDocument, FileMode.Create, FileAccess.ReadWrite)) using (var stamper = PdfStamper.CreateSignature(reader, fout, '\0')) { if (info.DocPass != null) { stamper.SetEncryption(info.DocPass, info.DocPass, PdfWriter.ALLOW_SCREENREADERS, PdfWriter.STRENGTH128BITS); } var img = new iTextSharp.text.Jpeg(new Uri(info.SignImagePath)); PdfSignatureAppearance appearance = stamper.SignatureAppearance; appearance.Image = img; appearance.Reason = info.ReasonForSigning; appearance.Location = info.Location; const float x = 20, y = 10; appearance.SetVisibleSignature(new iTextSharp.text.Rectangle(x, y, x + img.Width, y + img.Width), 1, "Icsi-Vendor"); IExternalSignature es = new PrivateKeySignature(pk, "SHA-256"); MakeSignature.SignDetached(appearance, es, new X509Certificate[] { pk12.GetCertificate(alias).Certificate }, null, null, null, 0, CryptoStandard.CMS); //http://www.phronesisweb.com/blog/filling-pdf-acrofields-in-c-using-itextsharp/ AcroFields form = stamper.AcroFields; form.GenerateAppearances = true; ////form.SetField("name", "John Doe"); ////form.SetField("address", "xxxxx, yyyy"); ////form.SetField("postal_code", "12345"); ////form.SetField("email", "*****@*****.**"); if (info.MetaData != null) { lock (info.MetaData) { foreach (Tuple <string, string> kv in info.MetaData) { form.SetField(kv.Item1, kv.Item2); //form.SetFieldProperty(kv.Item1.Compress(), "fflags", 0, null); } } } //http://forums.asp.net/t/1846462.aspx?PDF+form+contents+are+not+visible+iTextSharp //Dictionary<string, string> inf = reader.Info; ////inf.Add("Title", "Hello World stamped"); ////inf.Add("Subject", "Hello World with changed metadata"); ////inf.Add("Keywords", "iText in Action, PdfStamper"); ////inf.Add("Creator", "Silly standalone example"); ////inf.Add("Author", "Also Bruno Lowagie"); //if (info.MetaData != null) //{ // lock (info.MetaData) // foreach (Tuple<string, string> kv in info.MetaData) // inf.Add(kv.Item1, kv.Item2); // stamper.MoreInfo = inf; //} //stamper.SetFullCompression(); //stamper.Writer.SetFullCompression(); stamper.FormFlattening = true; stamper.Close(); } } }