/// <summary>
/// Generate a thumbnail from frontpage of a PDF document.
/// </summary>
/// <param name="document"></param>
/// <param name="documentfile"></param>
/// <param name="url"></param>
/// <returns></returns>
private string GenerateThumbnail(Document document, HttpPostedFileBase documentfile, string url)
{
if (document.documentUrl.Contains(".pdf"))
{
string filtype;
string seofilename = MakeSeoFriendlyDocumentName(documentfile, out filtype, out seofilename);
string documentNameSeo = RegisterUrls.MakeSeoFriendlyString(document.name);
string input = Path.Combine(Server.MapPath(Constants.DataDirectory + Document.DataDirectory), document.register.seoname + "_" + documentNameSeo + "_v" + document.versionNumber + "_" + seofilename + "." + filtype);
string output = Path.Combine(Server.MapPath(Constants.DataDirectory + Document.DataDirectory), document.register.seoname + "_thumbnail_" + documentNameSeo + "_v" + document.versionNumber + "_" + seofilename + ".jpg");
GhostscriptWrapper.GenerateOutput(input, output, GsSettings());
ImageResizer.ImageJob newImage =
new ImageResizer.ImageJob(output, output,
new ImageResizer.Instructions("maxwidth=160;maxheight=300;quality=75"));
newImage.Build();
return(url + document.register.seoname + "_thumbnail_" + documentNameSeo + "_v" + document.versionNumber + "_" + seofilename + ".jpg");
}
else if (document.documentUrl.Contains(".xsd"))
{
return("/Content/xsd.svg");
}
else
{
return("/Content/pdf.jpg");
}
}
private void ButtonGenerate_Click(object sender, EventArgs e)
{
try
{
string inputPath = this.textBoxInputPath.Text;
string outputPath = this.textBoxOutputPath.Text;
int page = (int)this.numericUpDownPage.Value;
int resolution = (int)this.numericUpDownResolution.Value;
GhostscriptDevices device = (GhostscriptDevices)this.comboBoxDevice.SelectedItem;
GhostscriptPageSizes pageSize = (GhostscriptPageSizes)this.comboBoxPageSize.SelectedItem;
GhostscriptSettings ghostscriptSettings = new GhostscriptSettings
{
Page = new GhostscriptPages {
Start = page, End = page
},
Device = device,
Resolution = new Size(resolution, resolution),
Size = new GhostscriptPageSize {
Native = pageSize
}
};
GhostscriptWrapper.GenerateOutput(inputPath, outputPath, ghostscriptSettings);
Process.Start(outputPath);
}
catch (Exception exception)
{
MessageBox.Show(exception.ToString());
}
}
public void Verify(FileInfo pdf)
{
if (!pdf.Exists)
{
throw new InvalidOperationException("File to verify does not exist '{0}'".Fmt(pdf.FullName));
}
using (var destination = new DisposableFile()) {
GhostscriptWrapper.GenerateOutput(
inputPath: pdf.FullName,
outputPath: destination.File.FullName,
settings: new GhostscriptSettings {
Device = GhostscriptDevices.tiff24nc,
Resolution = new Size(72, 72),
Size = new GhostscriptPageSize {
Native = GhostscriptPageSizes.letter
}
});
//GhostScript embeds a creation timestamp on each page of the tiff. Obviously if its different every time the files won't match up byte for byte. So normalize
using (var tiff = Tiff.Open(destination.File.FullName, "a")) {
Enumerable.Range(0, tiff.NumberOfDirectories()).ForEach(i => {
tiff.SetDirectory((short)i);
tiff.SetField(TiffTag.DATETIME, Encoding.UTF8.GetBytes("2010:01:01 12:00:00")); //any constant date will do the trick here.
tiff.CheckpointDirectory();
});
}
Approvals.Verify(GetTiffApprovalWriter(destination.File), GetNamer(), GetReporter());
}
}
public static void WriteOut(int pJpegWidth = 0, int[] pages = null)
{
var OutputPath = AppDomain.CurrentDomain.BaseDirectory;
var sourceFile = "test.pdf";
var jpegFile = Path.ChangeExtension(sourceFile, "jpg");
var settings = new GhostscriptSettings
{
Page = { AllPages = false, Start = 1, End = 1 },
Size = { Native = GhostscriptPageSizes.a2 },
Device = GhostscriptDevices.png16m,
Resolution = new Size(150, 122)
};
if (pages.Length > 1)
{
// PDF contains multiple pages, make each one into a jpg
var iPageNumber = 0;
foreach (var page in pages)
{
//FORMAT: GhostscriptWrapper.GenerateOutput(<pdf file path>, <destination jpg path>, <settings>);
GhostscriptWrapper.GenerateOutput(OutputPath + sourceFile, OutputPath + jpegFile.Replace(".jpg", "_" + iPageNumber + ".jpg"), settings); // add page number into jpg string
iPageNumber++;
settings.Page.Start = settings.Page.End = iPageNumber + 1;
}
}
else
{
//FORMAT: GhostscriptWrapper.GenerateOutput(<pdf file path>, <destination jpg path>, <settings>);
GhostscriptWrapper.GenerateOutput(OutputPath + sourceFile, OutputPath + jpegFile, settings);
}
}
public static void GetPdfThumbnail(string sourcePdfFilePath, string destinationPngFilePath, int StartPage = 1, int EndPage = 1, GhostscriptPageSizes PageSize = GhostscriptPageSizes.a4)
{
// Use GhostscriptSharp to convert the pdf to a png
GhostscriptWrapper.GenerateOutput(sourcePdfFilePath, destinationPngFilePath,
new GhostscriptSettings
{
Device = GhostscriptDevices.pngalpha,
Page = new GhostscriptPages
{
// Only make a thumbnail of the first page
Start = StartPage,
End = EndPage,
AllPages = false
},
Resolution = new Size
{
// Render at 72x72 dpi
Height = 300,
Width = 300
},
Size = new GhostscriptPageSize
{
// The dimensions of the incoming PDF must be
// specified. The example PDF is US Letter sized.
Native = PageSize
}
}
);
}
public GhostscriptSession GenerateForTesseract(string inputPath)
{
CreateEnvironment();
var settings = GhostscriptSettingsFactory.Tesseract();
GhostscriptWrapper.GenerateOutput(inputPath, OutputPattern + settings.GetDeviceExtension(), settings);
return(this);
}
public void GenerateSinglePageOutput()
{
var settings = new GhostscriptSettings
{
Page = { AllPages = false, Start = 1, End = 1 },
Size = { Native = GhostscriptPageSizes.a2 },
Device = GhostscriptDevices.png16m,
Resolution = new Size(150, 122)
};
GhostscriptWrapper.GenerateOutput(OutputPath + TEST_FILE_LOCATION, OutputPath + SINGLE_FILE_LOCATION, settings);
Assert.IsTrue(File.Exists(OutputPath + SINGLE_FILE_LOCATION));
}
//用來轉換PDF成一張一張的jpeg圖片
public void f_ConvertAllPDF(string pdfPath, string savePath)
{
GhostscriptSettings ghostscriptSettings = new GhostscriptSettings();
ghostscriptSettings.Device = GhostscriptSharp.Settings.GhostscriptDevices.jpeg; //圖片類型
ghostscriptSettings.Size.Native = GhostscriptSharp.Settings.GhostscriptPageSizes.legal; //legal為原尺寸
//ghostscriptSettings.Size.Manual = new System.Drawing.Size(2552, 3579); //此為設定固定尺寸
ghostscriptSettings.Resolution = new System.Drawing.Size(150, 150); //此為解析度
ghostscriptSettings.Page.AllPages = true;
GhostscriptWrapper.GenerateOutput(pdfPath, savePath, ghostscriptSettings);
Debug.Log("Complete!");
}
public GhostscriptSession GenerateOutput(IPdfContent pdfInfo)
{
CreateEnvironment();
var inputFilename = Id + ".pdf";
var inputPath = Path.Combine(Folder, inputFilename);
pdfInfo.WriteAllBytes(inputPath);
var settings = GhostscriptSettingsFactory.Default();
GhostscriptWrapper.GenerateOutput(inputPath, OutputPattern + settings.GetDeviceExtension(), settings);
return(this);
}
private static void PdfToJpg(string path, string fileName, GhostscriptDevices devise, GhostscriptPageSizes pageFormat, int qualityX, int qualityY)
{
var settingsForConvert = new GhostscriptSettings {
Device = devise
};
var pageSize = new GhostscriptPageSize {
Native = pageFormat
};
settingsForConvert.Size = pageSize;
settingsForConvert.Resolution = new System.Drawing.Size(qualityX, qualityY);
GhostscriptWrapper.GenerateOutput(path, @"C:\YR\Receipt\" + fileName + "_" + ".jpg", settingsForConvert); // here you could set path and name for out put file.
}
public void ConvertToTif()
{
var destination = new FileInfo(Path.GetTempPath() + "test_ConvertToTif.tif");
GhostscriptWrapper.GenerateOutput(
inputPath: TEST_FILE_LOCATION, outputPath: destination.FullName,
settings: new GhostscriptSettings
{
Device = GhostscriptDevices.tiffg4,
Resolution = new Size(400, 400),
Page = GhostscriptPages.All,
Size = new GhostscriptPageSize {
Native = GhostscriptPageSizes.a4
},
});
Approvals.VerifyFile(destination.FullName);
}
//Pdfから画像を取得する
private string getImageFromPdf(string baseFilePass, string pdfFielName)
{
//拡張子無しでファイル名を取得する
string imgFileName = Path.GetFileNameWithoutExtension(pdfFielName) + ".png";
try
{
//Pdfから画像を取得
GhostscriptSettings settings = new GhostscriptSettings();
settings.Page.AllPages = true; //全ページ出力
settings.Page.Start = 1; //出力開始ページ
settings.Page.End = 1; //出力終了ページ
settings.Size.Native = GhostscriptSharp.Settings.GhostscriptPageSizes.a0; //出力サイズ指定
settings.Device = GhostscriptSharp.Settings.GhostscriptDevices.png256; //出力ファイルフォーマット指定(pngで指定)
settings.Resolution = new Size(600, 600); //出力Dpi
string inputPath = baseFilePass + "\\" + pdfFielName;
string outputPath = baseFilePass + "\\" + imgFileName;
GhostscriptWrapper.GenerateOutput(inputPath, outputPath, settings); // Create the initial thumbnail
//ファイルが生成されない場合はパスを返さない
if (!System.IO.File.Exists(outputPath))
{
imgFileName = "";
outLogMsg(pdfFielName, "Pdf埋め込み画像なし");
}
else
{
outLogMsg(pdfFielName, "Pdf画像変換完了");
}
}
catch (Exception exp)
{
imgFileName = "";
outLogMsg(pdfFielName, "Pdf画像取得実施エラー : " + exp.Message);
}
return(imgFileName);
}
/* private int Decoder(string SourcePdfFileName,string DestPdfFileName, string Contact)
* {
* try
* {
*
* PdfReader pdfReader = new PdfReader(SourcePdfFileName);
*
* FileStream signedPdfs = new FileStream(DestPdfFileName, FileMode.Create);//the output pdf file
* PdfStamper pdfStamper = new PdfStamper(pdfReader, signedPdfs, '\0');
* PdfContentByte pdfData = pdfStamper.GetOverContent(1);
* //Create the QR Code/2D Code-------------------------------
* Image qrImage = GenerateQRCode(Contact);
* iTextSharp.text.Image itsQrCodeImage = iTextSharp.text.Image.GetInstance(qrImage, System.Drawing.Imaging.ImageFormat.Jpeg);
* itsQrCodeImage.SetAbsolutePosition(270, 50);
* pdfData.AddImage(itsQrCodeImage);
* pdfStamper.Close();
* return 1;
* }
* catch(Exception e)
* {
* ViewBag.exception = e.Message;
* return 0;
* }
* }*/
private int convertToImage(string sourcePdfFilePath, string destinationPngFilePath)
{
try
{
// Use GhostscriptSharp to convert the pdf to a png
GhostscriptWrapper.GenerateOutput(sourcePdfFilePath, destinationPngFilePath, new GhostscriptSettings
{
Device = GhostscriptDevices.pngalpha,
Page = new GhostscriptPages
{
// Only make a thumbnail of the first page
Start = 1,
End = 1,
AllPages = false
},
Resolution = new Size
{
// Render at 72x72 dpi
Height = 72,
Width = 72
},
Size = new GhostscriptPageSize
{
// The dimentions of the incoming PDF must be
// specified. The example PDF is US Letter sized.
Native = GhostscriptPageSizes.a4
}
}
);
return(1);
}
catch (Exception e)
{
ViewBag.exception = e.Message;
return(0);
}
}
