QualityFactor Property

Summary

Degree of loss in the compression process. This applies to JPEG compression only.

Syntax

Objective-C

C++/CLI

Java

Python

public int QualityFactor { get; set; }

@property (nonatomic, assign) NSInteger qualityFactor;

public int getQualityFactor() 
public void setQualityFactor(int qualityFactor)

public: 
property int QualityFactor { 
   int get(); 
   void set (    int ); 
}

QualityFactor # get and set (PdfDocumentOptions)

Property Value

A QualityFactor determines the degree of loss in the compression process. The default value is 80.

Remarks

QualityFactor is a number that determines the degree of loss in the compression process.

This applies to JPEG compression only.

0 - Lossless
2 - 255 Lossy (2 - Best Quality, 255 - Best Compression)

Example

Java

using Leadtools.Document.Writer; 
using Leadtools.Ocr; 
using Leadtools; 
using Leadtools.Codecs; 
 
 
public void PdfDocumentOptionsExample() 
{ 
   var inputFileName = Path.Combine(LEAD_VARS.ImagesDir, "test.docx"); 
   var outputFileName = Path.Combine(LEAD_VARS.ImagesDir, "Example.pdf"); 
 
   // Setup a new RasterCodecs object 
   var codecs = new RasterCodecs(); 
   codecs.Options.RasterizeDocument.Load.Resolution = 300; 
 
   // Get the number of pages in the input document 
   var pageCount = codecs.GetTotalPages(inputFileName); 
 
   // Create a new instance of the LEADTOOLS Document Writer 
   var docWriter = new DocumentWriter(); 
 
   // Change the PDF options 
   var pdfOptions = docWriter.GetOptions(DocumentFormat.Pdf) as PdfDocumentOptions; 
   pdfOptions.DocumentType = PdfDocumentType.Pdf; 
   pdfOptions.FontEmbedMode = DocumentFontEmbedMode.None; 
   pdfOptions.ImageOverText = false; 
   pdfOptions.Linearized = false; 
   pdfOptions.Title = "Add your title here"; 
   pdfOptions.Subject = "Add your subject here"; 
   pdfOptions.Keywords = "Add your keywords here"; 
   pdfOptions.Author = "Add author name here"; 
   pdfOptions.Protected = true; 
   pdfOptions.UserPassword = "User password"; 
   pdfOptions.OwnerPassword = "Owner password"; 
   pdfOptions.EncryptionMode = PdfDocumentEncryptionMode.RC128Bit; 
   pdfOptions.PrintEnabled = false; 
   pdfOptions.HighQualityPrintEnabled = true; 
   pdfOptions.CopyEnabled = false; 
   pdfOptions.EditEnabled = true; 
   pdfOptions.AnnotationsEnabled = true; 
   pdfOptions.AssemblyEnabled = false; 
   pdfOptions.OneBitImageCompression = OneBitImageCompressionType.Flate; 
   pdfOptions.ColoredImageCompression = ColoredImageCompressionType.FlateJpeg; 
   pdfOptions.QualityFactor = 2; 
 
   // Use default resolution 
   pdfOptions.DocumentResolution = 0; 
   pdfOptions.PageRestriction = DocumentPageRestriction.Relaxed; 
 
   // Setup empty page size (Letter size) 
   pdfOptions.EmptyPageWidth = 8.5; 
   pdfOptions.EmptyPageHeight = 11; 
   pdfOptions.EmptyPageResolution = 300; 
 
   docWriter.SetOptions(DocumentFormat.Pdf, pdfOptions); 
 
   // Create a new PDF document 
   Debug.WriteLine("Creating new PDF document: {0}", outputFileName); 
   docWriter.BeginDocument(outputFileName, DocumentFormat.Pdf); 
 
   // Loop through all the pages 
   for (var pageNumber = 1; pageNumber <= pageCount; pageNumber++) 
   { 
      // Get the page as SVG 
      Debug.WriteLine("Loading page {0}", pageNumber); 
      var page = new DocumentWriterSvgPage(); 
      page.SvgDocument = codecs.LoadSvg(inputFileName, pageNumber, null); 
 
      // Add the page 
      Debug.WriteLine("Adding page {0}", pageNumber); 
      docWriter.AddPage(page); 
 
      page.SvgDocument.Dispose(); 
   } 
 
   // Finally finish writing the PDF file on disk 
   docWriter.EndDocument(); 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.IOException; 
 
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.document.writer.*; 
import leadtools.ocr.*; 
 
 
public void pdfDocumentOptionsExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
 
   String inputFileName = combine(LEAD_VARS_IMAGES_DIR, "LEADTOOLSEditor.docx"); 
   String outputFileName = combine(LEAD_VARS_IMAGES_DIR, "Example.pdf"); 
 
   // Setup a new RasterCodecs object 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.getOptions().getRasterizeDocument().getLoad().setResolution(300); 
 
   // Get the number of pages in the input document 
   int pageCount = codecs.getTotalPages(inputFileName); 
 
   // Create a new instance of the LEADTOOLS Document Writer 
   DocumentWriter docWriter = new DocumentWriter(); 
 
   // Change the PDF options 
   PdfDocumentOptions pdfOptions = (PdfDocumentOptions) docWriter.getOptions(DocumentFormat.PDF); 
   pdfOptions.setDocumentType(PdfDocumentType.PDF); 
   pdfOptions.setFontEmbedMode(DocumentFontEmbedMode.NONE); 
   pdfOptions.setImageOverText(false); 
   pdfOptions.setLinearized(false); 
   pdfOptions.setTitle("Add your title here"); 
   pdfOptions.setSubject("Add your subject here"); 
   pdfOptions.setKeywords("Add your keywords here"); 
   pdfOptions.setAuthor("Add author name here"); 
   pdfOptions.setProtected(true); 
   pdfOptions.setUserPassword("User password"); 
   pdfOptions.setOwnerPassword("Owner password"); 
   pdfOptions.setEncryptionMode(PdfDocumentEncryptionMode.RC128BIT); 
   pdfOptions.setPrintEnabled(false); 
   pdfOptions.setHighQualityPrintEnabled(true); 
   pdfOptions.setCopyEnabled(false); 
   pdfOptions.setEditEnabled(true); 
   pdfOptions.setAnnotationsEnabled(true); 
   pdfOptions.setAssemblyEnabled(false); 
   pdfOptions.setOneBitImageCompression(OneBitImageCompressionType.FLATE); 
   pdfOptions.setColoredImageCompression(ColoredImageCompressionType.FLATE_JPEG); 
   pdfOptions.setQualityFactor(2); 
 
   // Use default resolution 
   pdfOptions.setDocumentResolution(0); 
   pdfOptions.setPageRestriction(DocumentPageRestriction.RELAXED); 
 
   // Setup empty page size (Letter size) 
   pdfOptions.setEmptyPageWidth(8.5); 
   pdfOptions.setEmptyPageHeight(11); 
   pdfOptions.setEmptyPageResolution(300); 
 
   docWriter.setOptions(DocumentFormat.PDF, pdfOptions); 
 
   // Create a new PDF document 
   System.out.printf("Creating new PDF document: %s%n", outputFileName); 
   docWriter.beginDocument(outputFileName, DocumentFormat.PDF); 
 
   // Loop through all the pages 
   for (int pageNumber = 1; pageNumber <= pageCount; pageNumber++) { 
 
      // Get the page as SVG 
      System.out.printf("Loading page %s%n", pageNumber); 
      DocumentWriterSvgPage page = new DocumentWriterSvgPage(); 
      page.setSvgDocument(codecs.loadSvg(inputFileName, pageNumber, null)); 
 
      // Add the page 
      System.out.printf("Adding page %s%n", pageNumber); 
      docWriter.addPage(page); 
 
      page.getSvgDocument().dispose(); 
   } 
 
   // Finally finish writing the PDF file on disk 
   docWriter.endDocument(); 
   codecs.dispose(); 
   System.out.println("no exceptions or errors. Program run successfully"); 
}