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IsEngineInstalled Property

Summary
Determines whether the LEADTOOLS PDF Engine Runtime files are installed.
Syntax
C#
C++/CLI
Java
Python
public bool IsEngineInstalled { get; } 
public boolean isEngineInstalled() 
public: 
property bool IsEngineInstalled { 
   bool get(); 
} 
IsEngineInstalled # get  (CodecsPdfOptions)

Property Value

Value Description
true To indicate the LEADTOOLS PDF Engine Runtime files are installed.
false To indicate the LEADTOOLS PDF Engine Runtime files are missing.
Remarks

Use this property to determine if the LEADTOOLS PDF Engine Runtime files (Leadtools.Pdf.Utilities.dll) are installed on the system.

The value of this property is used only when Leadtools.Pdf.Utilities.dll is used by the application. For more information, refer to Implementing PDF Features.

Example
C#
Java
using Leadtools; 
using Leadtools.Codecs; 
 
using Leadtools.ImageProcessing.Core; 
using Leadtools.Pdf; 
 
public void CodecsPdfOptionsExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "PDFSegmentation.pdf"); 
   string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "PdfOptions.pdf"); 
   string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "PdfOptions.bmp"); 
   CodecsImageInfo info = codecs.GetInformation(srcFileName, true); 
 
   codecs.Options.Pdf.InitialPath = @"C:\MyApp\Bin"; 
 
   info = codecs.GetInformation(srcFileName, true); 
   Debug.WriteLine("Information for: {0}", srcFileName); 
   Debug.WriteLine(string.Format("Document: {0}", info.Document)); // CodecsDocumentImageInfo reference 
   Debug.WriteLine(string.Format("Document: {0}", info.Document.IsDocumentFile)); 
   Debug.WriteLine(string.Format("Document: {0}", info.Document.PageHeight)); 
   Debug.WriteLine(string.Format("Document: {0}", info.Document.PageWidth)); 
   Debug.WriteLine(string.Format("Document: {0}", info.Document.Unit)); 
   Debug.WriteLine(string.Format("Document: {0}", info.IsGray8Alpha)); 
   Debug.WriteLine(string.Format("Palette: {0}", info.GetPalette())); 
 
   // Check if the PDF engine is installed then get the load and save options of the PDF files. 
   if (codecs.Options.Pdf.IsEngineInstalled) 
   { 
      // Resulting image pixel depth. 
      // CodecsPdfOptions & CodecsPdfLoadOptions reference 
      codecs.Options.Pdf.Load.DisplayDepth = 24; 
      codecs.Options.Pdf.Load.GraphicsAlpha = 4; 
      codecs.Options.Pdf.Load.DisableCieColors = false; 
      codecs.Options.Pdf.Load.DisableCropping = false; 
      codecs.Options.Pdf.Load.EnableInterpolate = false; 
      codecs.Options.Pdf.Load.Password = ""; 
 
      // Type of font anti-aliasing to use. 
      codecs.Options.Pdf.Load.TextAlpha = 1; 
      codecs.Options.Pdf.Load.UseLibFonts = true; 
 
      // Horizontal,vertical  display resolution in dots per inch. 
      codecs.Options.RasterizeDocument.Load.XResolution = 150; 
      codecs.Options.RasterizeDocument.Load.YResolution = 150; 
 
      // CodecsRasterizeDocumentOptions & CodecsRasterizeDocumentLoadOptions reference 
      codecs.Options.RasterizeDocument.Load.BottomMargin = 0.1; 
      codecs.Options.RasterizeDocument.Load.LeftMargin = 0.1; 
      codecs.Options.RasterizeDocument.Load.PageHeight = 11; 
      codecs.Options.RasterizeDocument.Load.PageWidth = 8.5; 
      codecs.Options.RasterizeDocument.Load.Resolution = 150; 
      codecs.Options.RasterizeDocument.Load.RightMargin = 1.25; 
      codecs.Options.RasterizeDocument.Load.SizeMode = CodecsRasterizeDocumentSizeMode.None; // CodecsRasterizeDocumentSizeMode Enumeration reference 
      codecs.Options.RasterizeDocument.Load.TopMargin = 1.0; 
      codecs.Options.RasterizeDocument.Load.Unit = CodecsRasterizeDocumentUnit.Pixel; // CodecsRasterizeDocumentUnit Enumeration reference 
 
      using (RasterImage image = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)) 
      { 
         // Set access rights for the user when he\she opens the file we create 
         // CodecsPdfSaveOptions reference 
         codecs.Options.Pdf.Save.AssembleDocument = true; 
         codecs.Options.Pdf.Save.ExtractText = true; 
         codecs.Options.Pdf.Save.ExtractTextGraphics = true; 
         codecs.Options.Pdf.Save.PrintDocument = false; 
         codecs.Options.Pdf.Save.FillForm = true; 
         codecs.Options.Pdf.Save.ModifyAnnotation = true; 
         codecs.Options.Pdf.Save.ModifyDocument = true; 
         codecs.Options.Pdf.Save.OwnerPassword = "LEAD Technologies"; 
         codecs.Options.Pdf.Save.PrintFaithful = false; 
         codecs.Options.Pdf.Save.TextEncoding = CodecsPdfTextEncoding.Hex; 
         codecs.Options.Pdf.Save.Use128BitEncryption = true; 
         codecs.Options.Pdf.Save.UserPassword = "LEAD"; 
 
         // Set the PDF version to be v1.4 
         codecs.Options.Pdf.Save.Version = CodecsRasterPdfVersion.V14; 
 
         // Save it as linearized (optimized for web view) 
         codecs.Options.Pdf.Save.Linearized = true; 
         codecs.Options.Pdf.Save.LowMemoryUsage = false; 
         codecs.Options.Pdf.Save.SavePdfA = false; 
         codecs.Options.Pdf.Save.SavePdfv13 = false; 
         codecs.Options.Pdf.Save.SavePdfv14 = false; 
         codecs.Options.Pdf.Save.SavePdfv15 = false; 
         codecs.Options.Pdf.Save.SavePdfv16 = false; 
         codecs.Options.Pdf.Save.SavePdfv17 = false; 
         codecs.Options.Pdf.Save.UseImageResolution = true; 
 
         // Save the image back as PDF 
         codecs.Save(image, destFileName1, RasterImageFormat.RasPdf, 24); 
      } 
 
      // And load it back before saving it as BMP 
      using (RasterImage image = codecs.Load(destFileName1)) 
      { 
         codecs.Save(image, destFileName2, RasterImageFormat.Bmp, image.BitsPerPixel); 
      } 
   } 
   else 
   { 
      Debug.WriteLine("PDF Engine is not found!"); 
   } 
 
   // Clean up 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
} 
 
import java.io.File; 
import java.io.IOException; 
import java.net.URI; 
import java.net.URISyntaxException; 
import java.nio.file.Paths; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.core.MinMaxBitsCommand; 
 
 
public void codecsPdfOptionsExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   RasterCodecs codecs = new RasterCodecs(); 
   String srcFileName = combine(LEAD_VARS_IMAGES_DIR, "PDFSegmentation.pdf"); 
   String destFileName1 = combine(LEAD_VARS_IMAGES_DIR, "PdfOptions.pdf"); 
   String destFileName2 = combine(LEAD_VARS_IMAGES_DIR, "PdfOptions.bmp"); 
   CodecsImageInfo info = codecs.getInformation(srcFileName, true); 
   codecs.getOptions().getPdf().setInitialPath("C:\\MyApp\\Bin"); 
   info = codecs.getInformation(srcFileName, true); 
   System.out.println("Information for: " + srcFileName); 
   System.out.println("Document: " + info.getDocument()); // CodecsDocumentImageInfo reference 
   System.out.println("Document: " + info.getDocument().isDocumentFile()); 
   System.out.println("Document: " + info.getDocument().getPageHeight()); 
   System.out.println("Document: " + info.getDocument().getPageWidth()); 
   System.out.println("Document: " + info.getDocument().getUnit()); 
   System.out.println("Document: " + info.isGray8Alpha()); 
   System.out.println("Palette: " + info.getPalette()); 
 
   // Check if the PDF engine is installed then get the load and save options of 
   // the PDF files. 
   if (codecs.getOptions().getPdf().getInitialPath() != null) { 
      // Resulting image pixel depth. 
      // CodecsPdfOptions & CodecsPdfLoadOptions reference 
      codecs.getOptions().getPdf().getLoad().setDisplayDepth(24); 
      codecs.getOptions().getPdf().getLoad().setGraphicsAlpha(4); 
      codecs.getOptions().getPdf().getLoad().setDisableCieColors(false); 
      codecs.getOptions().getPdf().getLoad().setDisableCropping(false); 
      codecs.getOptions().getPdf().getLoad().setEnableInterpolate(false); 
      codecs.getOptions().getPdf().getLoad().setPassword(""); 
 
      // Type of font anti-aliasing to use. 
      codecs.getOptions().getPdf().getLoad().setTextAlpha(1); 
      codecs.getOptions().getPdf().getLoad().setUseLibFonts(true); 
 
      // Horizontal,vertical display resolution in dots per inch. 
      codecs.getOptions().getRasterizeDocument().getLoad().setXResolution(150); 
      codecs.getOptions().getRasterizeDocument().getLoad().setYResolution(150); 
 
      // CodecsRasterizeDocumentOptions & CodecsRasterizeDocumentLoadOptions reference 
      codecs.getOptions().getRasterizeDocument().getLoad().setBottomMargin(0.1); 
      codecs.getOptions().getRasterizeDocument().getLoad().setLeftMargin(0.1); 
      codecs.getOptions().getRasterizeDocument().getLoad().setPageHeight(11); 
      codecs.getOptions().getRasterizeDocument().getLoad().setPageWidth(8.5); 
      codecs.getOptions().getRasterizeDocument().getLoad().setResolution(150); 
      codecs.getOptions().getRasterizeDocument().getLoad().setRightMargin(1.25); 
      codecs.getOptions().getRasterizeDocument().getLoad().setSizeMode(CodecsRasterizeDocumentSizeMode.NONE); // CodecsRasterizeDocumentSizeMode 
                                                                                                              // Enumeration 
                                                                                                              // reference 
      codecs.getOptions().getRasterizeDocument().getLoad().setTopMargin(1.0); 
      codecs.getOptions().getRasterizeDocument().getLoad().setUnit(CodecsRasterizeDocumentUnit.PIXEL); // CodecsRasterizeDocumentUnit 
                                                                                                       // Enumeration 
                                                                                                       // reference 
 
      RasterImage image = codecs.load(srcFileName, 0, CodecsLoadByteOrder.BGR_OR_GRAY, 1, 1); 
 
      // Set access rights for the user when he\she opens the file we create 
      // CodecsPdfSaveOptions reference 
      codecs.getOptions().getPdf().getSave().setAssembleDocument(true); 
      codecs.getOptions().getPdf().getSave().setExtractText(true); 
      codecs.getOptions().getPdf().getSave().setExtractTextGraphics(true); 
      codecs.getOptions().getPdf().getSave().setPrintDocument(false); 
      codecs.getOptions().getPdf().getSave().setFillForm(true); 
      codecs.getOptions().getPdf().getSave().setModifyAnnotation(true); 
      codecs.getOptions().getPdf().getSave().setModifyDocument(true); 
      codecs.getOptions().getPdf().getSave().setOwnerPassword("LEAD Technologies"); 
      codecs.getOptions().getPdf().getSave().setPrintFaithful(false); 
      codecs.getOptions().getPdf().getSave().setTextEncoding(CodecsPdfTextEncoding.HEX); 
      codecs.getOptions().getPdf().getSave().setUse128BitEncryption(true); 
      codecs.getOptions().getPdf().getSave().setUserPassword("LEAD"); 
 
      // Set the PDF version to be v1.4 
      codecs.getOptions().getPdf().getSave().setVersion(CodecsRasterPdfVersion.V14); 
 
      // Save it as linearized (optimized for web view) 
      codecs.getOptions().getPdf().getSave().setLinearized(true); 
      codecs.getOptions().getPdf().getSave().setLowMemoryUsage(false); 
      codecs.getOptions().getPdf().getSave().setSavePdfA(false); 
      codecs.getOptions().getPdf().getSave().setSavePdfv13(false); 
      codecs.getOptions().getPdf().getSave().setSavePdfv14(false); 
      codecs.getOptions().getPdf().getSave().setSavePdfv15(false); 
      codecs.getOptions().getPdf().getSave().setSavePdfv16(false); 
      codecs.getOptions().getPdf().getSave().setSavePdfv17(false); 
      codecs.getOptions().getPdf().getSave().setUseImageResolution(true); 
 
      // Save the image back as PDF 
      codecs.save(image, destFileName1, RasterImageFormat.PDF_LEAD_MRC, 24); 
      image = null; 
 
      // And load it back before saving it as BMP 
      image = codecs.load(destFileName1); 
      codecs.save(image, destFileName2, RasterImageFormat.BMP, image.getBitsPerPixel()); 
 
      assertTrue("File unsuccessfully saved to " + destFileName2, (new File(destFileName2)).exists()); 
      System.out.printf("File successfully saved to %s%n", destFileName2); 
 
      image = null; 
   } else 
      System.out.println("PDF Engine is not found!"); 
 
   // Clean up 
   codecs.dispose(); 
}
Requirements

Target Platforms

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