protected static void PrintToGhostscript(string printer, string outputFilename, PrintDocument printFunc)
{
String postscriptFile = outputFilename + ".ps";
PrintDialog printDialog = new PrintDialog
{
AllowPrintToFile = true,
PrintToFile = true
};
System.Drawing.Printing.PrinterSettings printerSettings = printDialog.PrinterSettings;
printerSettings.PrintToFile = true;
printerSettings.PrinterName = printer;
printerSettings.PrintFileName = postscriptFile;
printFunc(postscriptFile, printerSettings.PrinterName);
ReleaseCOMObject(printerSettings);
ReleaseCOMObject(printDialog);
GhostscriptProcessor gsproc = new GhostscriptProcessor();
List <string> gsArgs = new List <string>
{
"gs",
"-dBATCH",
"-dNOPAUSE",
"-dQUIET",
"-dSAFER",
"-dNOPROMPT",
"-sDEVICE=pdfwrite",
String.Format("-sOutputFile=\"{0}\"", string.Join(@"\\", outputFilename.Split(new string[] { @"\" }, StringSplitOptions.None))),
@"-f",
postscriptFile
};
gsproc.Process(gsArgs.ToArray());
File.Delete(postscriptFile);
}
public void Start()
{
string inputFile = @"E:\gss_test\test.pdf";
string outputFile = @"E:\gss_test\output\page-%03d.png";
int pageFrom = 1;
int pageTo = 50;
using (GhostscriptProcessor ghostscript = new GhostscriptProcessor())
{
ghostscript.Processing += new GhostscriptProcessorProcessingEventHandler(ghostscript_Processing);
List <string> switches = new List <string>();
switches.Add("-empty");
switches.Add("-dSAFER");
switches.Add("-dBATCH");
switches.Add("-dNOPAUSE");
switches.Add("-dNOPROMPT");
switches.Add("-dFirstPage=" + pageFrom.ToString());
switches.Add("-dLastPage=" + pageTo.ToString());
switches.Add("-sDEVICE=png16m");
switches.Add("-r96");
switches.Add("-dTextAlphaBits=4");
switches.Add("-dGraphicsAlphaBits=4");
switches.Add(@"-sOutputFile=" + outputFile);
switches.Add(@"-f");
switches.Add(inputFile);
ghostscript.Process(switches.ToArray());
}
}
public void Start()
{
string inputFile = Path.GetFullPath(@"../../../test/test.pdf").Replace("\\", "/");
string outputFile = Path.GetFullPath(@"../../../test/output/test-t2.tiff").Replace("\\", "/");
Directory.CreateDirectory(Path.GetDirectoryName(outputFile));
GhostscriptPipedOutput gsPipedOutput = new GhostscriptPipedOutput();
string h = gsPipedOutput.ClientHandle;
string outputPipeHandle = "%handle%" + int.Parse(h).ToString("X2");
using (GhostscriptProcessor processor = new GhostscriptProcessor())
{
//"C:\Program Files\gs\gs9.15\bin\gswin64.exe" -sDEVICE=tiff24nc -r300 -dNOPAUSE -dBATCH -sOutputFile="Invoice 1_%03ld.tiff" "Invoice 1.pdf"
List <string> switches = new List <string>();
//switches.Add("-empty");
switches.Add("-dQUIET");
switches.Add("-dSAFER");
switches.Add("-dBATCH");
switches.Add("-dNOPAUSE");
switches.Add("-dNOPROMPT");
switches.Add("-dPrinted");
//switches.Add("-sDEVICE=pdfwrite");
switches.Add("-sDEVICE=tiff24nc");
switches.Add("-sOutputFile=" + outputPipeHandle);
switches.Add("-f");
switches.Add(inputFile);
try
{
processor.Process(switches.ToArray());
byte[] rawDocumentData = gsPipedOutput.Data;
var memStream = new MemoryStream(rawDocumentData);
var image = new Bitmap(memStream);
image.Save(outputFile);
//if (writeToDatabase)
//{
// Database.ExecSP("add_document", rawDocumentData);
//}
//else if (writeToDisk)
//{
File.WriteAllBytes(outputFile + "__piped_output.data", rawDocumentData);
//}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
gsPipedOutput.Dispose();
gsPipedOutput = null;
}
}
}
private void Start2()
{
string inputFile = @"E:\__test_data\i1.pdf";
string outputFile = @"E:\gss_test\output\page-%03d.png";
GhostscriptPipedOutput gsPipedOutput = new GhostscriptPipedOutput();
string outputPipeHandle = "%handle%" + int.Parse(gsPipedOutput.ClientHandle).ToString("X2");
using (GhostscriptProcessor processor = new GhostscriptProcessor())
{
//"C:\Program Files\gs\gs9.15\bin\gswin64.exe" -sDEVICE=tiff24nc -r300 -dNOPAUSE -dBATCH -sOutputFile="Invoice 1_%03ld.tiff" "Invoice 1.pdf"
List <string> switches = new List <string>();
switches.Add("-empty");
switches.Add("-dQUIET");
switches.Add("-dSAFER");
switches.Add("-dBATCH");
switches.Add("-dNOPAUSE");
switches.Add("-dNOPROMPT");
switches.Add("-dPrinted");
switches.Add("-sDEVICE=pdfwrite");
//switches.Add("-sDEVICE=tiffsep1");
switches.Add("-sOutputFile=" + outputPipeHandle);
//switches.Add("-q");
switches.Add("-f");
switches.Add(inputFile);
try
{
processor.Process(switches.ToArray());
byte[] rawDocumentData = gsPipedOutput.Data;
var memStream = new MemoryStream(rawDocumentData);
//var image = new Bitmap(memStream);
//image.Save(@"Invocie 1.tiff");
//if (writeToDatabase)
//{
// Database.ExecSP("add_document", rawDocumentData);
//}
//else if (writeToDisk)
//{
// File.WriteAllBytes(@"E:\gss_test\output\test_piped_output.pdf", rawDocumentData);
//}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
gsPipedOutput.Dispose();
gsPipedOutput = null;
}
}
}
public void Start()
{
// gs -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT --permit-file-read=W:/Projects/sites/library.visyond.gov/80/lib/CS/Ghostscript.NET/test/ -c '(W:/Projects/sites/library.visyond.gov/80/lib/CS/Ghostscript.NET/test/test.pdf) (r) file runpdfbegin pdfpagecount = quit'
string inputFile = @"../../../test/test.pdf";
GhostscriptStdIO stdioCb = new GhostscriptViewerStdIOHandler();
try
{
using (GhostscriptProcessor ghostscript = new GhostscriptProcessor())
{
ghostscript.Processing += new GhostscriptProcessorProcessingEventHandler(ghostscript_Processing);
List <string> switches = new List <string>();
//switches.Add("-empty");
switches.Add("-dSAFER");
switches.Add("-dBATCH");
switches.Add("-dNOPAUSE");
switches.Add("-dNOPROMPT");
// report the page count as per https://stackoverflow.com/questions/4826485/ghostscript-pdf-total-pages :
//
// of course this spells trouble when the `outputFile` path itself contains double quotes :-(
// Also you cannot feed this baby *relative* paths as the GhostScript DLL will consider its own location as directory '.':
string ap = Path.GetFullPath(inputFile).Replace("\\", "/");
// as per https://stackoverflow.com/questions/50730501/ggt-an-output-file-with-a-count-of-pdf-pages-for-each-file-with-ghostscript#answer-61310660 :
// (make sure **all** paths havee forward slashes here, as they must match **exactly**!)
#if false // oddly enough --permit-file-read doesn't fly while -I does, but I've seen this same flaky behaviour on the commandline... :-(
switches.Add($"--permit-file-read={ Path.GetDirectoryName(ap).Replace("\\", "/") }");
#else
switches.Add($"-I{ Path.GetDirectoryName(ap).Replace("\\", "/") }");
#endif
switches.Add("-c");
switches.Add($"({ap}) (r) file runpdfbegin pdfpagecount = quit");
if (!File.Exists(ap))
{
throw new ApplicationException($"input file does not exist: {inputFile}{ (inputFile != ap ? $" --> {ap}" : "") }");
}
Console.WriteLine("CMD: {0}", String.Join(" ", switches.ToArray()));
ghostscript.Process(switches.ToArray(), stdioCb);
}
}
catch (Exception ex)
{
Console.WriteLine($"Error Exception: {ex}");
}
finally
{
Console.WriteLine(stdioCb.ToString());
}
}
/// Convert
#region Convert
/// <summary>
/// Converts postscript file to pdf
/// </summary>
/// <param name="psFileName">postscript file name</param>
/// <returns>pdf file name</returns>
public static void ConvertPStoPDF(string psFileName, string pdfFileName)
{
if (string.IsNullOrWhiteSpace(psFileName))
{
return;
}
if (string.IsNullOrWhiteSpace(pdfFileName))
{
return;
}
try
{
GhostscriptProcessor process = CreateProcessor();
process.Process(ConvertPStoPDFArgs(psFileName, pdfFileName));
process.Dispose();
}
catch (Exception ex)
{
WPFNotifier.DebugError(ex);
}
}
// Print out a document to a file which we will pass to ghostscript
protected static void PrintToGhostscript(string printer, string outputFilename, PrintDocument printFunc)
{
String postscriptFilePath = "";
String postscriptFile = "";
try
{
// Create a temporary location to output to
postscriptFilePath = Path.GetTempFileName();
File.Delete(postscriptFilePath);
Directory.CreateDirectory(postscriptFilePath);
postscriptFile = Path.Combine(postscriptFilePath, Guid.NewGuid() + ".ps");
// Set up the printer
PrintDialog printDialog = new PrintDialog
{
AllowPrintToFile = true,
PrintToFile = true
};
System.Drawing.Printing.PrinterSettings printerSettings = printDialog.PrinterSettings;
printerSettings.PrintToFile = true;
printerSettings.PrinterName = printer;
printerSettings.PrintFileName = postscriptFile;
// Call the appropriate printer function (changes based on the office application)
printFunc(postscriptFile, printerSettings.PrinterName);
ReleaseCOMObject(printerSettings);
ReleaseCOMObject(printDialog);
// Call ghostscript
GhostscriptProcessor gsproc = new GhostscriptProcessor();
List <string> gsArgs = new List <string>
{
"gs",
"-dBATCH",
"-dNOPAUSE",
"-dQUIET",
"-dSAFER",
"-dNOPROMPT",
"-sDEVICE=pdfwrite",
String.Format("-sOutputFile=\"{0}\"", string.Join(@"\\", outputFilename.Split(new string[] { @"\" }, StringSplitOptions.None))),
@"-f",
postscriptFile
};
gsproc.Process(gsArgs.ToArray());
}
finally {
// Clean up the temporary files
if (!String.IsNullOrWhiteSpace(postscriptFilePath) && Directory.Exists(postscriptFilePath))
{
if (!String.IsNullOrWhiteSpace(postscriptFile) && File.Exists(postscriptFile))
{
// Make sure ghostscript is not holding onto the postscript file
for (var i = 0; i < 60; i++)
{
try
{
File.Delete(postscriptFile);
break;
}
catch (IOException)
{
Thread.Sleep(500);
}
}
}
Directory.Delete(postscriptFilePath);
}
}
}
public static void ProcessFiles(string storageConnectionString,
string destinationContainer, string sourceContainer, string folder, string processedContainer)
{
if (!folder.Contains(".pdf"))
{
return;
}
CloudBlockBlob blob;
blob = StorageHelper.GetBlobReference(folder, sourceContainer, storageConnectionString);
Stream myBlob = new MemoryStream();
blob.DownloadToStreamAsync(myBlob).Wait();
myBlob.Position = 0;
string inputFile = System.IO.Path.GetTempPath() + Path.GetFileName(folder);
using (var fileStream = new FileStream(inputFile, FileMode.Create, FileAccess.Write))
{
myBlob.CopyTo(fileStream);
}
string outputFile = Path.GetTempPath() + Path.GetFileNameWithoutExtension(blob.Name) + "_%03d.jpg";
int pageFrom = 1;
int pageTo = 999;
//log.LogInformation($"Output file:{outputFile}");
GhostscriptVersionInfo gvi = new GhostscriptVersionInfo("D:\\home\\site\\wwwroot\\bin\\gsdll64.dll");
//GhostscriptVersionInfo gvi = new GhostscriptVersionInfo("C:\\Projects\\Repos\\msrpa\\msrpapdf\\bin\\Debug\\netcoreapp2.1\\bin\\gsdll32.dll");
using (GhostscriptProcessor ghostscript = new GhostscriptProcessor(gvi))
{
List <string> switches = new List <string>
{
"-empty",
"-dSAFER",
"-dBATCH",
"-dNOPAUSE",
"-dNOPROMPT",
"-dFirstPage=" + pageFrom.ToString(),
"-dLastPage=" + pageTo.ToString(),
"-sDEVICE=jpeg",
"-r188",
"-dJPEGQ=100",
//switches.Add("-dGraphicsAlphaBits=4");
@"-sOutputFile=" + outputFile,
@"-f",
inputFile
};
ghostscript.Process(switches.ToArray());
}
UploadFilesToBlob(Path.GetFileNameWithoutExtension(blob.Name), blob.Name, storageConnectionString, destinationContainer);
// Delete pdf file
File.Delete(inputFile);
// Move Blob to Processed Container
MoveBlob(storageConnectionString, sourceContainer, folder, processedContainer);
}
public void Start()
{
string inputFile = @"../../../test/test.pdf";
string outputFile = @"../../../test/output\page-%04d.png";
const int pageFrom = 1;
const int pageTo = 50;
const int dpi = 300; // 96 for screen when you don't want zoom or OCR-viable render output
const bool highQualityAntiAliasedOutput = true;
using (GhostscriptProcessor ghostscript = new GhostscriptProcessor())
{
ghostscript.Processing += new GhostscriptProcessorProcessingEventHandler(ghostscript_Processing);
List <string> switches = new List <string>();
//switches.Add("-empty");
switches.Add("-dSAFER");
switches.Add("-dBATCH");
switches.Add("-dNOPAUSE");
switches.Add("-dNOPROMPT");
switches.Add($"-dFirstPage={pageFrom}");
switches.Add($"-dLastPage={pageTo}");
switches.Add($"-sPageList={pageFrom}-"); // overrides FirstPage and LastPage when used...
switches.Add("-sDEVICE=png16m"); // PNG 24bit color output: https://ghostscript.com/doc/current/Devices.htm
switches.Add($"-r{dpi}");
switches.Add($"-dMaxBitmap={ /* assume A3+50% page size @ 4 bytes per pixel */ (int)(12 * 16 * dpi * dpi * 4 * 1.5) }");
if (highQualityAntiAliasedOutput)
{
switches.Add("-dTextAlphaBits=4"); // 4 = best quality: https://www.ghostscript.com/doc/9.52/Use.htm#Rendering_parameters
switches.Add("-dGraphicsAlphaBits=4");
switches.Add("-dAlignToPixels=0");
}
else
{
switches.Add("-dTextAlphaBits=1"); // 4 = best quality: https://www.ghostscript.com/doc/9.52/Use.htm#Rendering_parameters
switches.Add("-dGraphicsAlphaBits=1");
switches.Add("-dAlignToPixels=1");
}
switches.Add("-dPrinted=false"); // always treat output device as a screen instead of as a printer for annotations display, etc.
switches.Add($"-sOutputFile={outputFile}");
// make sure the target directory exists:
Directory.CreateDirectory(Path.GetDirectoryName(outputFile));
#if false // doesn't work :-(
// also report the page count as per https://stackoverflow.com/questions/4826485/ghostscript-pdf-total-pages :
switches.Add("-q");
switches.Add("-c");
// of course this spells trouble when the `outputFile` path itself contains double quotes :-(
// Aalso you cannot feed this baby *relative* paths as the GhostScript DLL will consider its own location as directory '.':
string ap = Path.GetFullPath(inputFile).Replace("\\", "/");
switches.Add($"\"({ap}) (r) file runpdfbegin pdfpagecount =\"");
#else
string ap = Path.GetFullPath(inputFile).Replace("\\", "/");
#endif
switches.Add("-c");
switches.Add("30000000 setvmthreshold");
switches.Add("-f");
switches.Add(ap /* inputFile -- just to make sure both parts of the GS command point at exactly the same file */);
if (!File.Exists(ap))
{
throw new ApplicationException($"input file does not exist: {inputFile}{ (inputFile != ap ? $" --> {ap}" : "") }");
}
Console.WriteLine("CMD: {0}", String.Join(" ", switches.ToArray()));
ghostscript.Process(switches.ToArray());
}
}