/// <summary>
/// Opens a PDF.
/// </summary>
public void OpenPDF()
{
this.CleanUp();
if (!this.DesignMode)
{
_converter = new Pdf2Image()
{
PdfFileName = this.PdfFileName,
PdfPassword = this.PdfPassword,
Settings = this.Settings
};
this.Image = null;
this.PageCache = new Dictionary <int, Bitmap>();
_currentPage = 1;
if (this.PageCount != 0)
{
_currentPage = 0;
this.CurrentPage = 1;
}
}
}
public static Bitmap ConvertToImage(string filename)
{
Bitmap firstPage = new Pdf2Image(filename).GetImage();
return(firstPage);
}
private bool ConvertDocumentPdf(int id)
{
TaiLieu document = db.TaiLieux.Where(x => x.MaTaiLieu == id).FirstOrDefault();
if (document != null)
{
string strPdfPath = Path.Combine(Server.MapPath("~/Upload/TaiLieuGoc/"), document.fileGOC);
if (System.IO.File.Exists(strPdfPath) && strPdfPath.ToLower().EndsWith(".pdf"))
{
Pdf2ImageSettings convertSetting = new Pdf2ImageSettings();
convertSetting.Dpi = 150;
Pdf2Image pdf = new Pdf2Image(strPdfPath, convertSetting);
if (pdf.PageCount > 0)
{
List <PdfPage> lstPage = new List <PdfPage>();
for (int j = 1; j <= pdf.PageCount; j++)
{
try
{
System.Drawing.Bitmap bitmap = pdf.GetImage(j);
//MemoryStream ms = new MemoryStream();
//bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
string strFileName = id + "-" + j + ".png";
string strFilePath = Path.Combine(Server.MapPath("~/Upload/Image/"), strFileName);
if (System.IO.File.Exists(strFilePath))
{
System.IO.File.Delete(strFilePath);
}
bitmap.Save(strFilePath, System.Drawing.Imaging.ImageFormat.Png);
PdfPage page = new PdfPage();
page.DocumentId = id;
page.Page = j;
page.ImageUrl = "/Upload/Image/" + strFileName;
lstPage.Add(page);
}
catch (IndexOutOfRangeException)
{
break;
}
catch (Exception ex)
{
using (StreamWriter writer = new StreamWriter(Path.Combine(Server.MapPath("~/Upload/Image/"), "Log.txt"), true, System.Text.UTF8Encoding.Unicode))
{
writer.WriteLine(ex.ToString());
}
break;
}
}
if (lstPage.Count > 0)
{
using (TransactionScope scope = new TransactionScope())
{
var lstOld = db.PdfPages.Where(x => x.DocumentId == id).ToList();
if (lstOld != null)
{
foreach (var item in lstOld)
{
db.PdfPages.Remove(item);
}
}
db.PdfPages.AddRange(lstPage);
db.SaveChanges();
scope.Complete();
}
return(true);
}
}
}
}
return(false);
}
