private static byte[] ToByteArray(this System.Drawing.Image image, ImageFormat format)
{
using (MemoryStream ms = new MemoryStream())
{
image.Save(ms, format);
return(ms.ToArray());
}
}
public static void ExtractImagesFromPDF(string sourcePdf, string outputPath)
{
// NOTE: This will only get the first image it finds per page.
PdfReader pdf = new PdfReader(sourcePdf);
//RandomAccessFileOrArray raf = new iTextSharp.text.pdf.RandomAccessFileOrArray(sourcePdf);
try
{
for (int pageNumber = 1; pageNumber <= pdf.NumberOfPages; pageNumber++)
{
PdfDictionary pg = pdf.GetPageN(pageNumber);
// recursively search pages, forms and groups for images.
PdfObject obj = FindImageInPDFDictionary(pg);
if (obj != null)
{
int XrefIndex = Convert.ToInt32(((PRIndirectReference)obj).Number.ToString(System.Globalization.CultureInfo.InvariantCulture));
PdfObject pdfObj = pdf.GetPdfObject(XrefIndex);
PdfStream pdfStrem = (PdfStream)pdfObj;
byte[] bytes = PdfReader.GetStreamBytesRaw((PRStream)pdfStrem);
if ((bytes != null))
{
using (System.IO.MemoryStream memStream = new System.IO.MemoryStream(bytes))
{
memStream.Position = 0;
System.Drawing.Image img = ImageHelper.ResizeImage(System.Drawing.Image.FromStream(memStream), .33M);
// must save the file while stream is open.
if (!Directory.Exists(outputPath))
{
Directory.CreateDirectory(outputPath);
}
string path = Path.Combine(outputPath, String.Format(@"{0}.jpg", pageNumber));
System.Drawing.Imaging.EncoderParameters parms = new System.Drawing.Imaging.EncoderParameters(1);
parms.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Compression, 0);
var encoders = ImageCodecInfo.GetImageEncoders();
System.Drawing.Imaging.ImageCodecInfo jpegEncoder = encoders.FirstOrDefault(p => p.CodecName == "Built-in JPEG Codec");
img.Save(path, jpegEncoder, parms);
}
}
}
}
}
catch
{
throw;
}
finally
{
pdf.Close();
//raf.Close();
}
}
public static void AddWatermarkImage(string filename)
{
string text = "SỞ LAO ĐỘNG THƯƠNG BINH VÀ XÃ HỘI HẢI DƯƠNG";
System.Drawing.Font font = new System.Drawing.Font("Arial", 20, FontStyle.Regular);
System.Drawing.Image image = (System.Drawing.Image)Bitmap.FromFile(filename);
using (Graphics g = Graphics.FromImage(image))
{
g.TranslateTransform(image.Width / 2, image.Height / 2);
g.RotateTransform(45);
SizeF textSize = g.MeasureString(text, font);
g.DrawString(text, font, Brushes.Chocolate, -(textSize.Width / 2), -(textSize.Height / 2));
}
MemoryStream m = new MemoryStream();
image.Save(m, ImageFormat.Jpeg);
image.Dispose();
byte[] convertedToBytes = m.ToArray();
File.WriteAllBytes(filename, convertedToBytes);
}
/// <summary>
/// Converts the <paramref name="image"/> to a byte array.
/// </summary>
/// <param name="image">The image to convert.</param>
/// <param name="compressionLevel">The compression level to use.</param>
/// <returns>The converted byte array.</returns>
private static byte[] ConvertImageToBytes(System.Drawing.Image image, long compressionLevel)
{
if (compressionLevel < 0)
{
compressionLevel = 0;
}
else if (compressionLevel > 100)
{
compressionLevel = 100;
}
var imageCodecInfo = GetImageCodecInfo(ImageFormat.Jpeg);
var encoder = Encoder.Quality;
var encoderParameters = new EncoderParameters(1);
var encoderParameter = new EncoderParameter(encoder, compressionLevel);
encoderParameters.Param[0] = encoderParameter;
using (var memoryStream = new MemoryStream())
{
image.Save(memoryStream, imageCodecInfo, encoderParameters);
return(memoryStream.ToArray());
}
}
public void Generate(Indulgence indulgence, string fontsDirectory, string contentDirectory, string bkFilename,
string pdfFilename, string imageThumbnailFileName_1, string imageThumbnailFileName_2,
string imageThumbnailFileName_3, string imageThumbnailFileName_4)
{
string thumb1Filename = imageThumbnailFileName_1;
string thumb2Filename = imageThumbnailFileName_2;
string thumb3Filename = imageThumbnailFileName_3;
string thumb4Filename = imageThumbnailFileName_4;
Rectangle background = PageSize.LETTER.Rotate();
background.BackgroundColor = new BaseColor(0, 0, 0, 0);
Document doc = new Document(PageSize.LETTER.Rotate(), 20, 20, 0, 0); // 70, 70, 130, 70
byte[] pdfData = null;
using (var ms = new System.IO.MemoryStream())
{
var pdfWriter = PdfWriter.GetInstance(doc, ms);
pdfWriter.PageEvent = new ParchmentPageEventHelper(_storage, contentDirectory, bkFilename);
BaseFont uechiGothicBase = BaseFont.CreateFont(System.IO.Path.Combine(fontsDirectory, "UECHIGOT.ttf"),
BaseFont.CP1252, BaseFont.EMBEDDED);
BaseFont trajanProBase =
BaseFont.CreateFont(System.IO.Path.Combine(fontsDirectory, "TrajanPro-Regular.otf"), BaseFont.CP1252,
BaseFont.EMBEDDED);
Font uechiGothic = new Font(uechiGothicBase, 150, iTextSharp.text.Font.NORMAL, new BaseColor(139, 0, 0));
Font trajanProConfession = new Font(trajanProBase, 45, iTextSharp.text.Font.BOLDITALIC,
new BaseColor(139, 0, 0));
Font trajanProBoldSmall = new Font(trajanProBase, 24, Font.BOLD, new BaseColor(139, 54, 38));
Font trajanProAttribution = new Font(trajanProBase, 24, iTextSharp.text.Font.NORMAL,
new BaseColor(139, 54, 38));
doc.Open();
var t = new PdfPTable(1);
t.WidthPercentage = 100;
var c = new PdfPCell();
c.VerticalAlignment = Element.ALIGN_MIDDLE;
c.MinimumHeight = doc.PageSize.Height - (doc.BottomMargin + doc.TopMargin);
// confession
Phrase firstLetterPhrase = new Phrase(indulgence.Confession.Substring(0, 1).ToUpper(), uechiGothic);
Phrase confessionPhrase = new Phrase(indulgence.Confession.Substring(1), trajanProConfession);
var confessionParagraph = new Paragraph(firstLetterPhrase);
confessionParagraph.Add(confessionPhrase);
confessionParagraph.Alignment = iTextSharp.text.Image.ALIGN_CENTER;
confessionParagraph.Leading = 45;
// attribution
List <Phrase> phrases = new List <Phrase>();
phrases.Add(new Phrase("On this ", trajanProAttribution));
phrases.Add(new Phrase(TextUtils.DayOfMonth(indulgence.DateConfessed), trajanProBoldSmall));
phrases.Add(new Phrase(" day of ", trajanProAttribution));
phrases.Add(new Phrase(string.Format("{0:MMMM}", indulgence.DateConfessed), trajanProBoldSmall));
phrases.Add(new Phrase(" in the year of our Lord ", trajanProAttribution));
phrases.Add(new Phrase(indulgence.DateConfessed.Year.ToString(), trajanProBoldSmall));
phrases.Add(new Phrase(", ", trajanProAttribution));
var attributionName = indulgence.Name;
if (string.IsNullOrWhiteSpace(attributionName))
{
attributionName = "An Anonymous Believer";
}
phrases.Add(new Phrase(attributionName, trajanProBoldSmall));
phrases.Add(new Phrase(" selflessly gave the sum of ", trajanProAttribution));
phrases.Add(new Phrase(string.Format("{0:c}", indulgence.AmountDonated), trajanProBoldSmall));
phrases.Add(new Phrase(" to the deserving organisation ", trajanProAttribution));
phrases.Add(new Phrase(indulgence.CharityName, trajanProBoldSmall));
phrases.Add(new Phrase(" and received this plenary indulgence", trajanProAttribution));
var attribution = new Paragraph();
confessionParagraph.Add(Environment.NewLine);
foreach (var phrase in phrases)
{
confessionParagraph.Add(phrase);
}
attribution.Leading = 24;
/*attribution.Insert(0, attributionName);
* attribution.Add(attributionDonation);
* attribution.Add(attributionTo);
* attribution.Add(attributionCharity);*/
attribution.SpacingBefore = 30;
c.AddElement(confessionParagraph);
t.AddCell(c);
doc.Add(t);
doc.Close();
pdfData = ms.ToArray();
}
_storage.Store(pdfFilename, pdfData, true);
System.Drawing.Image img = null;
using (MemoryStream pdfStream = new MemoryStream(pdfData))
using (MemoryStream pngStream = new MemoryStream())
{
GhostscriptVersionInfo gvi =
new GhostscriptVersionInfo(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"gsdll32.dll"));
using (var rasterizer = new Ghostscript.NET.Rasterizer.GhostscriptRasterizer())
{
rasterizer.Open(pdfStream, gvi, true);
rasterizer.EPSClip = false;
img = rasterizer.GetPage(96, 96, 1);
img.RotateFlip(RotateFlipType.Rotate90FlipNone);
img.Save(pngStream, ImageFormat.Png);
_storage.Store(thumb1Filename, pngStream.ToArray(), true);
}
}
float ratio = (float)img.Height / (float)img.Width;
SaveThumbnail(img, new SizeF(800, 800 * ratio), thumb2Filename);
SaveThumbnail(img, new SizeF(300, 300 * ratio), thumb3Filename);
SaveThumbnail(img, new SizeF(150, 150 * ratio), thumb4Filename);
// TODO: generate thumbnails as byte arrays and store to IFileStorage
}
public static void ExtractImagesFromPDF(string sourcePdf, string outputPath, int index)
{
// NOTE: This will only get the first image it finds per page.
PdfReader pdf = new PdfReader(sourcePdf);
RandomAccessFileOrArray raf = new iTextSharp.text.pdf.RandomAccessFileOrArray(sourcePdf);
try
{
for (int pageNumber = 1; pageNumber <= pdf.NumberOfPages; pageNumber++)
{
PdfDictionary pg = pdf.GetPageN(pageNumber);
PdfDictionary res =
(PdfDictionary)PdfReader.GetPdfObject(pg.Get(PdfName.RESOURCES));
PdfDictionary xobj =
(PdfDictionary)PdfReader.GetPdfObject(res.Get(PdfName.XOBJECT));
if (xobj != null)
{
foreach (PdfName name in xobj.Keys)
{
PdfObject obj = xobj.Get(name);
if (obj.IsIndirect())
{
PdfDictionary tg = (PdfDictionary)PdfReader.GetPdfObject(obj);
PdfName type =
(PdfName)PdfReader.GetPdfObject(tg.Get(PdfName.SUBTYPE));
if (PdfName.IMAGE.Equals(type))
{
int XrefIndex = Convert.ToInt32(((PRIndirectReference)obj).Number.ToString(System.Globalization.CultureInfo.InvariantCulture));
PdfObject pdfObj = pdf.GetPdfObject(XrefIndex);
PdfStream pdfStrem = (PdfStream)pdfObj;
byte[] bytes = PdfReader.GetStreamBytesRaw((PRStream)pdfStrem);
if ((bytes != null))
{
using (System.IO.MemoryStream memStream = new System.IO.MemoryStream(bytes))
{
memStream.Position = 0;
System.Drawing.Image img = System.Drawing.Image.FromStream(memStream);
// must save the file while stream is open.
if (!Directory.Exists(outputPath))
{
Directory.CreateDirectory(outputPath);
}
//string path = Path.Combine(outputPath, String.Format(@"{0}.jpg", pageNumber));
string _pageNumber = pageNumber.ToString().PadLeft(3, '0');
string path = Path.Combine(outputPath, index + "_" + _pageNumber + ".jpg");
EncoderParameters parms = new EncoderParameters(1);
parms.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, 0);
// GetImageEncoder is found below this method
ImageCodecInfo jpegEncoder = GetImageEncoder("JPEG");
img.Save(path, jpegEncoder, parms);
break;
}
}
}
}
}
}
}
}
catch
{
// throw;
}
finally
{
pdf.Close();
}
}