public void RenderImage(ImageRenderInfo renderInfo)
{
PdfImageObject image = renderInfo.GetImage();
var filter = (PdfName)image.Get(PdfName.FILTER);
if (filter != null)
{
System.Drawing.Image drawingImage = image.GetDrawingImage();
string extension = ".";
if (filter == PdfName.DCTDECODE)
{
extension += PdfImageObject.ImageBytesType.JPG.FileExtension;
}
else if (filter == PdfName.JPXDECODE)
{
extension += PdfImageObject.ImageBytesType.JP2.FileExtension;
}
else if (filter == PdfName.FLATEDECODE)
{
extension += PdfImageObject.ImageBytesType.PNG.FileExtension;
}
else if (filter == PdfName.LZWDECODE)
{
extension += PdfImageObject.ImageBytesType.CCITT.FileExtension;
}
this.Images.Add(drawingImage, extension);
string path = System.IO.Path.GetFullPath(System.AppDomain.CurrentDomain.BaseDirectory);
drawingImage.Save(path + "temp" + extension, drawingImage.RawFormat);
}
}
public void RenderImage(ImageRenderInfo renderInfo)
{
PdfImageObject image = renderInfo.GetImage();
PdfName filter = (PdfName)image.Get(PdfName.FILTER);
if (filter != null)
{
System.Drawing.Image drawingImage = image.GetDrawingImage();
string extension = ".";
if (filter == PdfName.DCTDECODE)
{
extension += PdfImageObject.ImageBytesType.JPG.FileExtension;
}
else if (filter == PdfName.JPXDECODE)
{
extension += PdfImageObject.ImageBytesType.JP2.FileExtension;
}
else if (filter == PdfName.FLATEDECODE)
{
extension += PdfImageObject.ImageBytesType.PNG.FileExtension;
}
else if (filter == PdfName.LZWDECODE)
{
extension += PdfImageObject.ImageBytesType.CCITT.FileExtension;
}
this.Images.Add(drawingImage, extension);
}
}
public void RenderImage(ImageRenderInfo renderInfo)
{
PdfImageObject image = renderInfo.GetImage();
var pdfObject = image.Get(PdfName.FILTER);
PdfName filter = null;
if (pdfObject is PdfName)
{
filter = (PdfName)pdfObject;
var drawingImage = GetImage(filter, image);
if (drawingImage != null)
{
Images.Add(drawingImage.Item2, drawingImage.Item1);
}
}
if (pdfObject is PdfArray)
{
var pdfArray = (PdfArray)pdfObject;
foreach (PdfName pdfName in pdfArray)
{
var drawingImage = GetImage(pdfName, image);
Images.Add(drawingImage.Item2, drawingImage.Item1);
}
}
}
public void RenderImage(ImageRenderInfo renderInfo)
{
PdfImageObject image = renderInfo.GetImage();
PdfName filter = (PdfName)image.Get(PdfName.FILTER);
//int width = Convert.ToInt32(image.Get(PdfName.WIDTH).ToString());
//int bitsPerComponent = Convert.ToInt32(image.Get(PdfName.BITSPERCOMPONENT).ToString());
//string subtype = image.Get(PdfName.SUBTYPE).ToString();
//int height = Convert.ToInt32(image.Get(PdfName.HEIGHT).ToString());
//int length = Convert.ToInt32(image.Get(PdfName.LENGTH).ToString());
//string colorSpace = image.Get(PdfName.COLORSPACE).ToString();
/* It appears to be safe to assume that when filter == null, PdfImageObject
* does not know how to decode the image to a System.Drawing.Image.
*
* Uncomment the code above to verify, but when I've seen this happen,
* width, height and bits per component all equal zero as well. */
if (filter != null)
{
System.Drawing.Image drawingImage = image.GetDrawingImage();
string extension = ".";
if (filter == PdfName.DCTDECODE)
{
extension += PdfImageObject.ImageBytesType.JPG.FileExtension;
}
else if (filter == PdfName.JPXDECODE)
{
extension += PdfImageObject.ImageBytesType.JP2.FileExtension;
}
else if (filter == PdfName.FLATEDECODE)
{
extension += PdfImageObject.ImageBytesType.PNG.FileExtension;
}
else if (filter == PdfName.LZWDECODE)
{
extension += PdfImageObject.ImageBytesType.CCITT.FileExtension;
}
/* Rather than struggle with the image stream and try to figure out how to handle
* BitMapData scan lines in various formats (like virtually every sample I've found
* online), use the PdfImageObject.GetDrawingImage() method, which does the work for us. */
this.Images.Add(drawingImage, extension);
}
}
public void RenderImage(ImageRenderInfo renderInfo)
{
PdfImageObject image = renderInfo.GetImage();
PdfName filter = (PdfName)image.Get(PdfName.FILTER);
if (filter != null)
{
try
{
Image drawingImage = image.GetDrawingImage();
_images.Add(drawingImage);
}
catch (Exception)
{
// _log.Error(e.Message);
}
}
}
public void RenderImage(ImageRenderInfo info)
{
PdfImageObject image = info.GetImage();
var fileType = image.GetFileType();
var imgBytes = image.GetImageAsBytes();
var imgDict = image.GetDictionary();
var imgInfo = "Unknown";
var filter = image.Get(PdfName.FILTER);
if (filter != null)
{
imgInfo = filter.ToString().Replace(',', ' ');
}
var ctm = info.GetImageCTM();
var ctmWidth = ctm[Matrix.I11];
var ctmHeight = ctm[Matrix.I22];
int imgWidth = -1;
int imgHeight = -1;
int imgResolution = -1;
PixelFormat imgFormat = PixelFormat.Undefined;
if (imgInfo != "/JBIG2Decode" && imgInfo != "/JPXDecode")
{
var img = image.GetDrawingImage();
imgWidth = img.Width;
imgHeight = img.Height;
imgFormat = img.PixelFormat;
imgResolution = Convert.ToInt32(img.VerticalResolution);
img.Dispose();
}
Images.Add(new PDFImageInfo()
{
ImageBytes = imgBytes.Length, ImageFormat = imgFormat.ToString(),
ImageHeight = imgHeight, ImageWidth = imgWidth, ImageResolution = imgResolution,
ImageInfo = imgInfo, ImageType = fileType
});
}
public void RenderImage(ImageRenderInfo renderInfo)
{
PdfImageObject image = renderInfo.GetImage();
PdfName filter = (PdfName)image.Get(PdfName.FILTER);
if (filter != null)
{
var drawingImage = image.GetImageAsBytes();
string extension = ".";
if (filter == PdfName.DCTDECODE)
{
extension += PdfImageObject.ImageBytesType.JPG.FileExtension;
}
else if (filter == PdfName.JPXDECODE)
{
extension += PdfImageObject.ImageBytesType.JP2.FileExtension;
}
else if (filter == PdfName.FLATEDECODE)
{
extension += PdfImageObject.ImageBytesType.PNG.FileExtension;
}
else if (filter == PdfName.LZWDECODE)
{
extension += PdfImageObject.ImageBytesType.CCITT.FileExtension;
}
/* Rather than struggle with the image stream and try to figure out how to handle
* BitMapData scan lines in various formats (like virtually every sample I’ve found
* online), use the PdfImageObject.GetDrawingImage() method, which does the work for us. */
var skbit = SkiaSharp.SKBitmap.Decode(drawingImage);
var skimg = SKImage.FromBitmap(skbit);
this.Images.Add(skimg, extension);
}
}
public void RenderImage(ImageRenderInfo renderInfo)
{
PdfImageObject image = renderInfo.GetImage();
var v = PdfName.FILTER;
//PdfArray array = new PdfArray();
//array.Add(PdfName.FLATEDECODE);
//array.Add(PdfName.DCTDECODE);
//imgStream.put(PdfName.FILTER, array);
//PdfName filter = (PdfName)image.Get(PdfName.FILTER);
PdfName filter = (PdfName)image.Get(PdfName.FIRST);
int width = Convert.ToInt32(image.Get(PdfName.WIDTH).ToString());
int bitsPerComponent = Convert.ToInt32(image.Get(PdfName.BITSPERCOMPONENT).ToString());
string subtype = image.Get(PdfName.SUBTYPE).ToString();
int height = Convert.ToInt32(image.Get(PdfName.HEIGHT).ToString());
int length = Convert.ToInt32(image.Get(PdfName.LENGTH).ToString());
string colorSpace = image.Get(PdfName.COLORSPACE).ToString();
/* It appears to be safe to assume that when filter == null, PdfImageObject
* does not know how to decode the image to a System.Drawing.Image.
*
* Uncomment the code above to verify, but when I've seen this happen,
* width, height and bits per component all equal zero as well. */
//if (filter != null)
//{
Image drawingImage = image.GetDrawingImage();
string extension = PdfImageObject.ImageBytesType.JPG.FileExtension;
//if (filter == PdfName.DCTDECODE)
//{
// extension += PdfImageObject.ImageBytesType.JPG.FileExtension;
//}
//else if (filter == PdfName.JPXDECODE)
//{
// extension += PdfImageObject.ImageBytesType.JP2.FileExtension;
//}
//else if (filter == PdfName.FLATEDECODE)
//{
// extension += PdfImageObject.ImageBytesType.PNG.FileExtension;
//}
//else if (filter == PdfName.LZWDECODE)
//{
// extension += PdfImageObject.ImageBytesType.CCITT.FileExtension;
//}
/* Rather than struggle with the image stream and try to figure out how to handle
* BitMapData scan lines in various formats (like virtually every sample I've found
* online), use the PdfImageObject.GetDrawingImage() method, which does the work for us. */
try
{
var pages = Program.NumberOfPagesPdf(Program.FilePhth);
this.Images.Add(drawingImage, extension);
string filename = @"C:\Images\" + pages + "\\";
bool exists = System.IO.Directory.Exists(filename);
PdfImageExtractor.increment++;
if (!exists)
{
System.IO.Directory.CreateDirectory(filename);
}
if (PdfImageExtractor.increment <= pages)
{
string fullName2 = filename + "im" + PdfImageExtractor.increment + ".JPG";
byte[] byteArray = Encoding.UTF8.GetBytes(fullName2);
MemoryStream stream = new MemoryStream();
drawingImage.Save(stream, drawingImage.RawFormat);
drawingImage.Save(fullName2, ImageFormat.Gif);
if (Program.invoice.images1.Any(m => m.ImageName == fullName2))
{
}
else
{
//sparar bilden till modellen
Program.invoice.images1.Add(new Models.Images()
{
ImageName = fullName2,
ImageData = stream.ToArray()
});
}
}
}
catch (IOException e)
{
Console.WriteLine(e);
}
}
/// <summary>
/// Gets image from PDF and compresses it - Found on StackOverflow - asis
/// </summary>
/// <param name="reader"></param>
/// <param name="quality"></param>
public static void ReduceResolution(PdfReader reader, long quality)
{
int n = reader.XrefSize;
for (int i = 0; i < n; i++)
{
PdfObject obj = reader.GetPdfObject(i);
if (obj == null || !obj.IsStream())
{
continue;
}
PdfDictionary dict = (PdfDictionary)PdfReader.GetPdfObject(obj);
PdfName subType = (PdfName)PdfReader.GetPdfObject(
dict.Get(PdfName.SUBTYPE)
);
if (!PdfName.IMAGE.Equals(subType))
{
continue;
}
PRStream stream = (PRStream)obj;
try
{
PdfImageObject image = new PdfImageObject(stream);
//PdfName filter = (PdfName)image.Get(PdfName.FILTER);
//if (
// PdfName.JBIG2DECODE.Equals(filter)
// || PdfName.JPXDECODE.Equals(filter)
// || PdfName.CCITTFAXDECODE.Equals(filter)
// || PdfName.FLATEDECODE.Equals(filter)
//) continue;
System.Drawing.Image img = image.GetDrawingImage();
if (img == null)
{
continue;
}
var ll = image.GetImageBytesType();
int width = img.Width;
int height = img.Height;
using (System.Drawing.Bitmap dotnetImg =
new System.Drawing.Bitmap(img))
{
// set codec to jpeg type => jpeg index codec is "1"
System.Drawing.Imaging.ImageCodecInfo codec =
System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders()[1];
// set parameters for image quality
System.Drawing.Imaging.EncoderParameters eParams =
new System.Drawing.Imaging.EncoderParameters(1);
eParams.Param[0] =
new System.Drawing.Imaging.EncoderParameter(
System.Drawing.Imaging.Encoder.Quality, quality
);
using (MemoryStream msImg = new MemoryStream())
{
dotnetImg.Save(msImg, codec, eParams);
msImg.Position = 0;
stream.SetData(msImg.ToArray());
stream.SetData(
msImg.ToArray(), false, PRStream.BEST_COMPRESSION
);
stream.Put(PdfName.TYPE, PdfName.XOBJECT);
stream.Put(PdfName.SUBTYPE, PdfName.IMAGE);
stream.Put(PdfName.FILTER, image.Get(PdfName.FILTER));
stream.Put(PdfName.FILTER, PdfName.DCTDECODE);
stream.Put(PdfName.WIDTH, new PdfNumber(width));
stream.Put(PdfName.HEIGHT, new PdfNumber(height));
stream.Put(PdfName.BITSPERCOMPONENT, new PdfNumber(8));
stream.Put(PdfName.COLORSPACE, PdfName.DEVICERGB);
}
}
}
catch
{
// throw;
// iText[Sharp] can't handle all image types...
}
finally
{
// may or may not help
reader.RemoveUnusedObjects();
}
}
}