/// <summary>
/// Cleanup GhostscriptWrapper.
/// </summary>
public void Cleanup()
{
if (m_GhostscriptWrapper != null)
{
m_GhostscriptWrapper.Cleanup();
m_GhostscriptWrapper = null;
}
}
/// <summary>
/// Initialize GhostscriptWrapper with relevant parameters for PDF2PNGSingle conversion.
/// This method convert only the first page of the PDF to PNG.
/// </summary>
public void InitPDF2PNGSingleConversion()
{
Cleanup();
// Parameters creation.
string[] parameters = new string[6];
parameters[0] = "this is gs command .exe name"; // Ghostscript exe command.
parameters[1] = "-dNOPAUSE"; // Do not prompt and pause for each page
parameters[2] = "-dFirstPage=1"; // Convert only the first page of the PDF to PNG.
parameters[3] = "-dLastPage=1"; // Convert only the first page of the PDF to PNG.
parameters[4] = "-sDEVICE=pngalpha"; // what kind of export format i should provide, in this case "pngalpha" for transparent PNG.
parameters[5] = "-dDOINTERPOLATE";
// Create the Ghostscript wrapper.
m_GhostscriptWrapper = new GhostscriptWrapper();
m_GhostscriptWrapper.Init(parameters);
}
/// <summary>
/// Initialize GhostscriptWrapper with relevant parameters for PDF2JPG conversion.
/// </summary>
public void InitPDF2JPGConversion()
{
Cleanup();
// Parameters creation.
string[] parameters = new string[4];
parameters[0] = "this is gs command .exe name"; // Ghostscript exe command.
parameters[1] = "-dNOPAUSE"; // Do not prompt and pause for each page
parameters[2] = "-sDEVICE=jpeg"; // what kind of export format i should provide.
parameters[3] = "-dDOINTERPOLATE";
// Create the Ghostscript wrapper.
m_GhostscriptWrapper = new GhostscriptWrapper();
m_GhostscriptWrapper.Init(parameters);
}
/// <summary>
/// Convert EPS to PDF.
/// </summary>
/// <param name="inPathFileToConvert"></param>
/// <param name="inOutputFileFullPath"></param>
/// <returns></returns>
public bool ConvertPDF2LowResPDF(string inPathFileToConvert, string inOutputFileFullPath, int dpiResolution = 72)
{
// Parameters creation.
List<string> parameters = new List<string>();
parameters.Add("this is gs command .exe name"); // Ghostscript exe command.
parameters.Add("-dNOPAUSE"); // Do not prompt and pause for each page
parameters.Add("-dBATCH"); // Terminate when accomplish.
parameters.Add("-dPDFSETTINGS=/default");
parameters.Add("-r" + dpiResolution);
parameters.Add("-sDEVICE=pdfwrite"); // Device name.
parameters.Add("-sOutputFile=" + inOutputFileFullPath); // Where to write the output.
parameters.Add(inPathFileToConvert); // File to convert.
// Create the Ghostscript wrapper.
m_GhostscriptWrapper = new GhostscriptWrapper();
bool convertResult = m_GhostscriptWrapper.Init(parameters.ToArray());
Cleanup();
return convertResult;
}
/// <summary>
/// Convert PDF to EPS.
/// </summary>
/// <param name="inPathFileToConvert"></param>
/// <param name="inOutputFileFullPath"></param>
/// <param name="inFirstPageToConvert"></param>
/// <param name="inLastPageToConvert"></param>
/// <returns></returns>
public bool ConvertPDF2EPS(string inPathFileToConvert, string inOutputFileFullPath, double inFirstPageToConvert, double inLastPageToConvert)
{
// Parameters creation.
string[] parameters = new string[10];
parameters[0] = "this is gs command .exe name"; // Ghostscript exe command.
parameters[1] = "-dNOPAUSE"; // Do not prompt and pause for each page
parameters[2] = "-dBATCH"; // Terminate when accomplish.
parameters[3] = "-dGraphicsAlphaBits=2";
parameters[4] = "-dTextAlphaBits=4";
parameters[5] = "-dFirstPage=" + Convert.ToInt32(inFirstPageToConvert); // First page to convert in the PDF.
parameters[6] = "-dLastPage=" + Convert.ToInt32(inLastPageToConvert); // Last page to convert in the PDF.
parameters[7] = "-sDEVICE=eps2write"; // Device name.
parameters[8] = "-sOutputFile=" + inOutputFileFullPath; // Where to write the output.
parameters[9] = inPathFileToConvert; // File to convert.
// Create the Ghostscript wrapper.
m_GhostscriptWrapper = new GhostscriptWrapper();
bool convertResult = m_GhostscriptWrapper.Init(parameters);
Cleanup();
return convertResult;
}
/// <summary>
/// Convert JPG to low res JPG.
/// </summary>
/// <param name="inPathFileToConvert"></param>
/// <param name="inOutputFileFullPath"></param>
/// <returns></returns>
public bool ConvertJPG2LowResJPG(string inPathFileToConvert, string inOutputFileFullPath, int dpiResolution = 72)
{
//Command example:
//gswin32c -sDEVICE=jpeg -dBATCH -dNOPAUSE -r72 -sOutputFile=file.jpg viewjpeg.ps -c "(c:/photos/file.jpg) << /PageSize 2 index viewJPEGgetsize 2 array astore >> setpagedevice viewJPEG showpage"
string fullExeNameAndPath = System.Reflection.Assembly.GetExecutingAssembly().Location;
string exeDirectory = System.IO.Path.GetDirectoryName(fullExeNameAndPath);
// Parameters creation.
string[] parameters = new string[11];
parameters[0] = "this is gs command .exe name"; // Ghostscript exe command.
parameters[1] = "-dNOPAUSE"; // Do not prompt and pause for each page
parameters[2] = "-dBATCH"; // Terminate when accomplish.
parameters[3] = "-dGraphicsAlphaBits=2";
parameters[4] = "-dTextAlphaBits=4";
parameters[5] = "-r" + dpiResolution;
parameters[6] = "-sDEVICE=jpeg"; // Device name.
parameters[7] = "-sOutputFile=" + inOutputFileFullPath; // Where to write the output.
parameters[8] = exeDirectory + "\\viewjpeg.ps";
parameters[9] = "-c";
parameters[10] = "(" + inPathFileToConvert.Replace("\\", "/") + ") << /PageSize 2 index viewJPEGgetsize 2 array astore >> setpagedevice viewJPEG showpage";
// Create the Ghostscript wrapper.
m_GhostscriptWrapper = new GhostscriptWrapper();
bool convertResult = m_GhostscriptWrapper.Init(parameters);
Cleanup();
return convertResult;
}
