/// <summary> SPIRE_JPEG 左上角有水印
/// 分辨率：1280x 720
/// </summary>
/// <param name="filepath"></param>
/// <param name="outputPath"></param>
/// <returns></returns>
List <PPTPage> spirePDF(string filepath, string outputPath)
{
List <PPTPage> pages = new List <PPTPage>();
Spire.Pdf.PdfDocument doc = new Spire.Pdf.PdfDocument(filepath);
int pageCount = doc.Pages.Count;
int width = (int)doc.PageSettings.Width;
int height = (int)doc.PageSettings.Height;
for (int i = 0; i < pageCount;)
{
string path = string.Format("{0}/img-{1}.jpeg", outputPath, i);
System.Drawing.Image img = doc.SaveAsImage(i);
img.Save(path, System.Drawing.Imaging.ImageFormat.Jpeg);
pages.Add(new PPTPage()
{
Cover = path
});
Console.WriteLine("PDF TO IMAGES - {0}/{1}", ++i, pageCount);
}
return(pages);
}
void PdftoIMG(string pdfpath)
{
Spire.Pdf.PdfDocument pdfdocument = new Spire.Pdf.PdfDocument();
pdfdocument.LoadFromFile(pdfpath);
System.Drawing.Image image = pdfdocument.SaveAsImage(0, 96, 96);
image.Save(string.Format(Server.MapPath("~/Images/UIDimage/New.jpg"), System.Drawing.Imaging.ImageFormat.Jpeg));
}
public String ConvertPdfToImage(imgformat img, String Route)
{
string dataDir = Server.MapPath(Route);
////string[] extensions = { ".jpg", ".txt", ".asp", ".css", ".cs", ".xml" };
string[] extensions = { ".pdf" };
String Outfilename = String.Empty;
String FinalSaveJPG = String.Empty;
try
{
////////////// String[] FilesPath = Directory.GetFiles(dataDir, "*.*")
////////////// .Where(f => extensions.Contains(new FileInfo(f).Extension.ToLower())).ToArray();
FileInfo[] FilesPathArray = new DirectoryInfo(dataDir).GetFiles()
.OrderBy(f => f.LastWriteTime)
.ToArray();
int FilesCount = FilesPathArray.Length;
for (int i = 0; i < FilesCount; i++)
{
Spire.Pdf.PdfDocument doc = new Spire.Pdf.PdfDocument();
//doc.LoadFromFile(FilesPath[i]);
String kookoko = (String.Format("{0}\\{1}", dataDir, FilesPathArray[i]));
doc.LoadFromFile(String.Format("{0}\\{1}", dataDir, FilesPathArray[i]));
System.Drawing.Image bmp = doc.SaveAsImage(0);
System.Drawing.Image emf = doc.SaveAsImage(0, Spire.Pdf.Graphics.PdfImageType.Metafile);
System.Drawing.Image zoomImg = new System.Drawing.Bitmap((int)(emf.Size.Width * 2), (int)(emf.Size.Height * 2));
using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(zoomImg))
{
g.ScaleTransform(2.0f, 2.0f);
g.DrawImage(emf, new System.Drawing.Rectangle(new System.Drawing.Point(0, 0), emf.Size), new System.Drawing.Rectangle(new System.Drawing.Point(0, 0), emf.Size), System.Drawing.GraphicsUnit.Pixel);
}
Outfilename = fileName.Replace(".pdf", "");
FinalSaveJPG = String.Format("{0}\\{1}\\{2}", rootPath, AssignedFolder, IMGexportedPath);
fn.CreateFolderUpload(FinalSaveJPG);
switch (img)
{
case imgformat.jpg:
zoomImg.Save(Server.MapPath(String.Format("{0}\\{1}[{2}].jpg", FinalSaveJPG, i, Outfilename)), ImageFormat.Jpeg);
break;
case imgformat.bmp:
zoomImg.Save(Server.MapPath(String.Format("{0}\\{1}[{2}].bmp", FinalSaveJPG, i, Outfilename)), ImageFormat.Bmp);
break;
case imgformat.png:
zoomImg.Save(Server.MapPath(String.Format("{0}\\{1}[{2}].png", FinalSaveJPG, i, Outfilename)), ImageFormat.Png);
break;
case imgformat.tiff:
zoomImg.Save(Server.MapPath(String.Format("{0}\\{1}[{2}].tiff", FinalSaveJPG, i, Outfilename)), ImageFormat.Tiff);
break;
}
}
return(FinalSaveJPG);
}
catch (Exception)
{
return(null);
}
#region comenteed
//String aaa = "asddasdasmkld";
//emf.Save(Server.MapPath(rootPathUpload)+ @"\" + "convertToBmp.jpg", ImageFormat.Jpeg);
//emf.Save(Server.MapPath(rootPathUpload) + @"\" + "convertToBmp.bmp", ImageFormat.Bmp);
////System.Diagnostics.Process.Start("convertToBmp.bmp");
//emf.Save(Server.MapPath(rootPathUpload) + @"\" + "convertToEmf.png", ImageFormat.Png);
//System.Diagnostics.Process.Start("convertToEmf.png");
//zoomImg.Save(Server.MapPath(rootPathUpload) + @"\" + "convertToZoom.png", ImageFormat.Tiff);
//zoomImg.Save(Server.MapPath(rootPathUpload) + @"\" + "convertToZoom.png", ImageFormat.Wmf);
//zoomImg.Save(Server.MapPath(rootPathUpload) + @"\" + "convertToZoom.png", ImageFormat.Exif);
//zoomImg.Save(Server.MapPath(rootPathUpload) + @"\" + "convertToZoom.png", ImageFormat.Gif);
//zoomImg.Save(Server.MapPath(rootPathUpload) + @"\" + "convertToZoom.png", ImageFormat.Icon);
//zoomImg.Save(Server.MapPath(rootPathUpload) + @"\" + "convertToZoom.png", ImageFormat.Wmf);
//System.Diagnostics.Process.Start("convertToZoom.png");
/////return "";
#endregion
}
