public static List <System.Drawing.Image> ExtractImagesFromPDF(String PDFSourcePath)
{
List <System.Drawing.Image> ImgList = new List <System.Drawing.Image>();
iTextSharp.text.pdf.RandomAccessFileOrArray RAFObj = null;
iTextSharp.text.pdf.PdfReader PDFReaderObj = null;
iTextSharp.text.pdf.PdfObject PDFObj = null;
iTextSharp.text.pdf.PdfStream PDFStremObj = null;
try
{
RAFObj = new iTextSharp.text.pdf.RandomAccessFileOrArray(PDFSourcePath);
PDFReaderObj = new iTextSharp.text.pdf.PdfReader(RAFObj, null);
for (int i = 0; i <= PDFReaderObj.XrefSize - 1; i++)
{
PDFObj = PDFReaderObj.GetPdfObject(i);
if ((PDFObj != null) && PDFObj.IsStream())
{
PDFStremObj = (iTextSharp.text.pdf.PdfStream)PDFObj;
iTextSharp.text.pdf.PdfObject subtype = PDFStremObj.Get(iTextSharp.text.pdf.PdfName.SUBTYPE);
if ((subtype != null) && subtype.ToString() == iTextSharp.text.pdf.PdfName.IMAGE.ToString())
{
try
{
iTextSharp.text.pdf.parser.PdfImageObject PdfImageObj =
new iTextSharp.text.pdf.parser.PdfImageObject((iTextSharp.text.pdf.PRStream)PDFStremObj);
System.Drawing.Image ImgPDF = PdfImageObj.GetDrawingImage();
ImgList.Add(ImgPDF);
}
catch (Exception)
{
}
}
}
}
PDFReaderObj.Close();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
return(ImgList);
}
private void b_pdf2jpg_Click(object sender, EventArgs e)
{
try
{
if (listBox1.SelectedIndex != -1 & comboBox1.Text == "*.pdf")
{
foreach (var item in listBox1.SelectedItems)
{
Convert.ToString(item);
string sourcePdf = Convert.ToString(item);
string thename = Path.GetFileNameWithoutExtension(sourcePdf);
raf = new iTextSharp.text.pdf.RandomAccessFileOrArray(sourcePdf);
reader = new iTextSharp.text.pdf.PdfReader(raf, null);
var page = reader.GetPageSize(1);
int heigt = Convert.ToInt16(page.Height);
int width = Convert.ToInt16(page.Width);
//uzycie wprapera z Nuget
//GhostscriptWrapper.GeneratePageThumb(@sourcePdf, @sourcePdf.Replace("pdf", "jpg"), 1, width, heigt);
//GhostscriptWrapper.GeneratePageThumb(sourcePdf, sourcePdf.Replace("pdf", "jpg"), 1, 297, 210);
GhostscriptJpegDevice dev = new GhostscriptJpegDevice(GhostscriptJpegDeviceType.Jpeg);
dev.GraphicsAlphaBits = GhostscriptImageDeviceAlphaBits.V_4;
dev.TextAlphaBits = GhostscriptImageDeviceAlphaBits.V_4;
dev.ResolutionXY = new GhostscriptImageDeviceResolution(300, 300);
dev.JpegQuality = 100;
dev.InputFiles.Add(@sourcePdf);
dev.Pdf.FirstPage = 1;
dev.Pdf.LastPage = 1;
dev.OutputPath = @sourcePdf.Replace("pdf", "jpg");
dev.Process();
}
System.Media.SystemSounds.Beep.Play();
MessageBox.Show("koniec");
}
else
{
System.Media.SystemSounds.Beep.Play();
MessageBox.Show("Wskaż pliki pdf na liście");
}
}
catch
{
}
}
public void splitPdfByPages(String sourcePdf, int numOfPages, string baseNameOutPdf)
{
int pageCount = 0;
string path = Path.GetFullPath(sourcePdf);
string separtator = "_";
string extension = ".pdf";
try
{
raf = new iTextSharp.text.pdf.RandomAccessFileOrArray(sourcePdf);
reader = new iTextSharp.text.pdf.PdfReader(raf, null);
pageCount = reader.NumberOfPages;
if (pageCount < numOfPages)
{
MessageBox.Show("Nie ma co dzielić");
}
else
{
string counter;
string ext = System.IO.Path.GetExtension(baseNameOutPdf);
string outfile = string.Empty;
double m = pageCount / numOfPages;
int n = (int)Math.Ceiling(m);
int currentPage = 1;
string thename = Path.GetFileNameWithoutExtension(sourcePdf);
string name = Path.GetFileName(sourcePdf);
for (int i = 1; i <= pageCount; i++)
{
if (i < 10)
{
counter = "00";
}
else
{
counter = "0";
}
outfile = path.Replace(name, "") + thename + separtator + counter + i + extension;
doc = new iTextSharp.text.Document(reader.GetPageSizeWithRotation(currentPage));
pdfCpy = new iTextSharp.text.pdf.PdfCopy(doc, new System.IO.FileStream(outfile, System.IO.FileMode.Create));
doc.Open();
if (i < n)
{
for (int j = 1; j <= numOfPages; j++)
{
page = pdfCpy.GetImportedPage(reader, currentPage);
pdfCpy.AddPage(page);
currentPage += 1;
}
}
else
{
for (int j = currentPage; j <= pageCount; j++)
{
page = pdfCpy.GetImportedPage(reader, j);
pdfCpy.AddPage(page);
}
}
doc.Close();
Console.Beep();
}
}
reader.Close();
}
catch (Exception ex)
{
throw ex;
}
}
