private void button4_Click(object sender, EventArgs e)
{
if (pictureBox1.Image != null)
{
pictureBox1.Image.Dispose();
}
PictureBox pic = new PictureBox();
pic.Width = 800;
pic.Height = 1024;
_pdfDoc.FitToWidth(pic.Handle);
pic.Height = _pdfDoc.PageHeight;
_pdfDoc.RenderPage(pic.Handle);
/*Added since 1.0.6.2*/
_pdfDoc.CurrentX = 0;
_pdfDoc.CurrentY = 0;
_pdfDoc.ClientBounds = new Rectangle(0, 0, _pdfDoc.PageWidth, _pdfDoc.PageHeight);
_backbuffer = new Bitmap(_pdfDoc.PageWidth, _pdfDoc.PageHeight);
using (Graphics g = Graphics.FromImage(_backbuffer))
{
/*New thread safe method*/
_pdfDoc.DrawPageHDC(g.GetHdc());
g.ReleaseHdc();
}
pic.Dispose();
pictureBox1.Image = _backbuffer;
}
private void GetImageFromPDF(int page, PictureBox pictureBox)
{
if (pdfDoc != null)
{
pdfDoc.CurrentPage = page;
pdfDoc.CurrentX = pdfDoc.CurrentY = 0;
pdfDoc.RenderPage(pictureBox.Handle);
pictureBox.Image = new Bitmap(pdfDoc.PageWidth, pdfDoc.PageHeight);
pdfDoc.ClientBounds = new Rectangle(0, 0, pdfDoc.PageWidth, pdfDoc.PageHeight);
using (Graphics g = Graphics.FromImage(pictureBox.Image))
{
pdfDoc.DrawPageHDC(g.GetHdc());
g.ReleaseHdc();
}
}
}
public void Append(byte[] bytes)
{
using (var ms = new MemoryStream(bytes))
{
switch (LibPDFTools.GetImageFileType(bytes))
{
case ImageFileType.PDF:
using (var pdfDoc = new PDFLibNet.PDFWrapper(""))
{
pdfDoc.LoadPDF(ms);
for (var i = 1; i <= pdfDoc.PageCount; i++)
{
pdfDoc.CurrentPage = i;
pdfDoc.CurrentX = 0;
pdfDoc.CurrentY = 0;
pdfDoc.RenderDPI = this.resolution;
Bitmap pageBuffer = null;
using (var oPictureBox = new PictureBox())
{
pdfDoc.RenderPage(oPictureBox.Handle);
pageBuffer = new Bitmap(pdfDoc.PageWidth, pdfDoc.PageHeight);
pdfDoc.ClientBounds = new System.Drawing.Rectangle(0, 0, pdfDoc.PageWidth, pdfDoc.PageHeight);
using (var g = Graphics.FromImage(pageBuffer))
{
var hdc = g.GetHdc();
pdfDoc.DrawPageHDC(hdc);
g.ReleaseHdc();
}
}
SaveAddTiffPage(pageBuffer);
pageBuffer.Dispose();
currPageNum++;
}
}
break;
case ImageFileType.TIFF:
{
using (var image = System.Drawing.Image.FromStream(ms))
{
var fd = new System.Drawing.Imaging.FrameDimension(image.FrameDimensionsList[0]);
int numberOfPages = image.GetFrameCount(fd);
for (int pageNum = 0; pageNum < numberOfPages; pageNum++)
{
image.SelectActiveFrame(fd, pageNum);
if (currPageNum == 0)
{
backbuffer = (System.Drawing.Image)image.Clone();
backbuffer.Save(outStream, codec, encoderParameters_MultiFrame);
}
else
{
backbuffer.SaveAdd(image, encoderParameters_FrameDimensionPage);
}
currPageNum++;
}
}
}
break;
default:
{
var pageBuffer = System.Drawing.Image.FromStream(ms);
SaveAddTiffPage(pageBuffer);
}
currPageNum++;
break;
}
}
}
public void LoadImage(string url, ref byte[] password)
{
if (currentUrlOfPdf == url)
{
return;
}
var bytes = LibPDFTools.GetBytes(url);
var ms = new MemoryStream(bytes);
Image pageBuffer;
switch (LibPDFTools.GetImageFileType(bytes))
{
case ImageFileType.PDF:
byte[] newPassword = password;
L100:
try
{
if (newPassword != null)
{
pdfDoc.OwnerPassword = Encoding.ASCII.GetString(newPassword);
}
pdfDoc.LoadPDF(url);
password = newPassword;
}
catch (SecurityException se)
{
if (QueryPassword == null)
{
throw se;
}
if (QueryPassword != null)
{
newPassword = QueryPassword(url);
if (newPassword == null)
{
throw se;
}
goto L100;
}
}
pdfDoc.CurrentPage = 1;
pdfDoc.CurrentX = 0;
pdfDoc.CurrentY = 0;
pdfDoc.RenderDPI = 72;
using (var oPictureBox = new PictureBox())
{
pdfDoc.RenderPage(oPictureBox.Handle);
pageBuffer = new Bitmap(pdfDoc.PageWidth, pdfDoc.PageHeight);
pdfDoc.ClientBounds = new System.Drawing.Rectangle(0, 0, pdfDoc.PageWidth, pdfDoc.PageHeight);
using (var g = Graphics.FromImage(pageBuffer))
{
var hdc = g.GetHdc();
pdfDoc.DrawPageHDC(hdc);
g.ReleaseHdc();
}
}
break;
default:
pageBuffer = System.Drawing.Image.FromStream(ms);
break;
}
LoadImage(pageBuffer, url);
GC.Collect();
}
