public override void Process(PdfFileParserData data)
{
data.WFState.Value = WFState.WFStateFail;
Dictionary <String, byte[]> files = new Dictionary <String, byte[]>();
PdfReader reader = new PdfReader(data.DocumentToProcess);
PdfReaderContentParser parser = new PdfReaderContentParser(reader);
MyImageRenderListener listener = new MyImageRenderListener();
for (int i = 1; i <= reader.NumberOfPages; i++)
{
parser.ProcessContent(i, listener);
}
for (int i = 0; i < listener.Images.Count; ++i)
{
string filedir = string.Format("{0}\\{1}", Path.GetDirectoryName(data.DocumentToProcess), WFUtilities.GetNextDirectoryNumber(Path.GetDirectoryName(data.DocumentToProcess)));
if (!Directory.Exists(filedir))
{
Directory.CreateDirectory(filedir);
}
if (Directory.Exists(filedir))
{
using (FileStream fs = new FileStream(string.Format("{0}\\{1}", filedir, listener.ImageNames[i]), FileMode.Create, FileAccess.Write))
{
fs.Write(listener.Images[i], 0, listener.Images[i].Length);
}
data.OutputDocuments.Add(string.Format("{0}\\{1}", filedir, listener.ImageNames[i]));
}
}
data.WFState.Value = KRSrcWorkflow.WFState.WFStateSuccess;
}
private static void Main(string[] args)
{
var pdfPath = "E:\\Embryo_Omics\\pdfExtract\\Binder1.pdf";
var outputPath = "E:\\Embryo_Omics\\SingleSection_OldGrant\\OutTest\\Pngs";
PdfReader pdf = new PdfReader(pdfPath);
PdfReaderContentParser parser = new PdfReaderContentParser(pdf);
MyImageRenderListener listener = new MyImageRenderListener();
for (int i = 1; i <= pdf.NumberOfPages; i++)
{
parser.ProcessContent(i, listener); //Runs MyImageRenderListener below
}
var imgCount = listener.Images.Count;
for (int i = 0; i < imgCount; i++)
{
var image = listener.Images[i];
var ext = listener.ImageExt[i];
var name = listener.ImageNames[i];
using (MemoryStream ms = new MemoryStream(image))
{
using (System.Drawing.Image img = System.Drawing.Image.FromStream(ms))
{
img.Save(String.Format("{0}\\{1}.png", outputPath, name), ImageFormat.Png);
}
}
}
}
public PdfImageObject extractImage(String signatureName)
{
MyImageRenderListener listener = new MyImageRenderListener();
PdfDictionary sigFieldDic = reader.AcroFields.GetFieldItem(signatureName).GetMerged(0);
PdfDictionary appearancesDic = sigFieldDic.GetAsDict(PdfName.AP);
PdfStream normalAppearance = appearancesDic.GetAsStream(PdfName.N);
PdfDictionary resourcesDic = normalAppearance.GetAsDict(PdfName.RESOURCES);
PdfContentStreamProcessor processor = new PdfContentStreamProcessor(listener);
processor.ProcessContent(ContentByteUtils.GetContentBytesFromContentObject(normalAppearance), resourcesDic);
return(listener.image);
}
