VintaSoft Imaging .NET SDK 14.0: Documentation for .NET developer
Vintasoft.Imaging.Codecs.Encoders Namespace / PdfMrcCompressionSettings Class
Members Object Syntax Remarks Example Hierarchy Requirements SeeAlso
In This Topic
    PdfMrcCompressionSettings Class
    In This Topic
    Class that contains settings for encoding of PDF document with MRC compression.
    Object Model
    PdfCompressionSettings PdfCompressionSettings PdfCompressionSettings PdfCompressionSettings ImageSegmentationCommand ProcessingCommandBase PdfMrcCompressionSettings
    Syntax
    'Declaration

Public Class PdfMrcCompressionSettings


    public class PdfMrcCompressionSettings


    public __gc class PdfMrcCompressionSettings


    public ref class PdfMrcCompressionSettings
    Remarks

    A compression technology called PDF MRC (Mixed Raster Content) is used for minimizing the size of PDF and PDF/A files. PDF MRC compression algorithm analyzes the document image, locates picture objects and text regions on the document image, divides the document image onto layers and compress each layer with the best compression.

    Document image can be divided to the following layers:

    • Background layer - layer that contains objects which were not classified as picture or text.
    • Images layer - layer that contains picture objects (continuous-tone components)
    • Mask layer - layer that contains text
    • Front layer - layer that is used for coloring the text

    Example

    This C#/VB.NET code shows how to compress the document images, which contain text and pictures, using MRC compression algorithm and get the resulting images with high quality. 

    
Public Shared Sub SetSetting_DocumentWithImagesHiQuality(settings As Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings)
    settings.CreateBackgroundLayer = True
    settings.BackgroundLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg Or Vintasoft.Imaging.Pdf.PdfCompression.Zip
    settings.BackgroundLayerCompressionSettings.JpegQuality = 60

    settings.ImageSegmentation = New Vintasoft.Imaging.ImageProcessing.Info.ImageSegmentationCommand()
    settings.CreateImagesLayer = False

    settings.HiQualityMask = True
    settings.MaskCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jbig2
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = True

    settings.CreateFrontLayer = True
    settings.HiQualityFrontLayer = True
    settings.FrontLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg2000
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionRatio = 300 * 3
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionType = Vintasoft.Imaging.Codecs.ImageFiles.Jpeg2000.Jpeg2000CompressionType.Lossy
End Sub


    
public static void SetSetting_DocumentWithImagesHiQuality(
    Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings settings)
{
    settings.CreateBackgroundLayer = true;
    settings.BackgroundLayerCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jpeg | 
        Vintasoft.Imaging.Pdf.PdfCompression.Zip;
    settings.BackgroundLayerCompressionSettings.JpegQuality = 60;

    settings.ImageSegmentation =
        new Vintasoft.Imaging.ImageProcessing.Info.ImageSegmentationCommand();
    settings.CreateImagesLayer = false;

    settings.HiQualityMask = true;
    settings.MaskCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jbig2;
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = true;

    settings.CreateFrontLayer = true;
    settings.HiQualityFrontLayer = true;
    settings.FrontLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg2000;
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionRatio = 300 * 3;
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionType = 
        Vintasoft.Imaging.Codecs.ImageFiles.Jpeg2000.Jpeg2000CompressionType.Lossy;
}
    This C#/VB.NET code shows how to compress the document images, which contain text and pictures, using MRC compression algorithm and get the resulting images with normal quality. 
    
Public Shared Sub SetSetting_DocumentWithImagesNormal(settings As Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings)
    settings.CreateBackgroundLayer = True
    settings.BackgroundLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg Or Vintasoft.Imaging.Pdf.PdfCompression.Zip
    settings.BackgroundLayerCompressionSettings.JpegQuality = 35

    settings.ImageSegmentation = New Vintasoft.Imaging.ImageProcessing.Info.ImageSegmentationCommand()
    settings.CreateImagesLayer = False

    settings.HiQualityMask = True
    settings.MaskCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jbig2
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = True

    settings.CreateFrontLayer = True
    settings.HiQualityFrontLayer = True
    settings.FrontLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg Or Vintasoft.Imaging.Pdf.PdfCompression.Zip
    settings.FrontLayerCompressionSettings.JpegQuality = 25
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionRatio = 400 * 3
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionType = Vintasoft.Imaging.Codecs.ImageFiles.Jpeg2000.Jpeg2000CompressionType.Lossy
End Sub


    
public static void SetSetting_DocumentWithImagesNormal(
    Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings settings)
{
    settings.CreateBackgroundLayer = true;
    settings.BackgroundLayerCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jpeg | 
        Vintasoft.Imaging.Pdf.PdfCompression.Zip;
    settings.BackgroundLayerCompressionSettings.JpegQuality = 35;

    settings.ImageSegmentation = 
        new Vintasoft.Imaging.ImageProcessing.Info.ImageSegmentationCommand();
    settings.CreateImagesLayer = false;

    settings.HiQualityMask = true;
    settings.MaskCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jbig2;
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = true;

    settings.CreateFrontLayer = true;
    settings.HiQualityFrontLayer = true;
    settings.FrontLayerCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jpeg | 
        Vintasoft.Imaging.Pdf.PdfCompression.Zip;
    settings.FrontLayerCompressionSettings.JpegQuality = 25;
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionRatio = 400 * 3;
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionType = 
        Vintasoft.Imaging.Codecs.ImageFiles.Jpeg2000.Jpeg2000CompressionType.Lossy;
}
    This C#/VB.NET code shows how to compress the document images, which contain text and pictures, using MRC compression algorithm and get the resulting images with high compression ratio. 
    
Public Shared Sub SetSetting_DocumentWithImagesHiCompression(settings As Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings)
    settings.CreateBackgroundLayer = True
    settings.BackgroundLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg Or Vintasoft.Imaging.Pdf.PdfCompression.Zip
    settings.BackgroundLayerCompressionSettings.JpegQuality = 20

    settings.ImageSegmentation = New Vintasoft.Imaging.ImageProcessing.Info.ImageSegmentationCommand()
    settings.CreateImagesLayer = False

    settings.HiQualityMask = False
    settings.MaskCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jbig2
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = True

    settings.CreateFrontLayer = True
    settings.HiQualityFrontLayer = False
    settings.FrontLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Zip
End Sub


    
public static void SetSetting_DocumentWithImagesHiCompression(
    Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings settings)
{
    settings.CreateBackgroundLayer = true;
    settings.BackgroundLayerCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jpeg | 
        Vintasoft.Imaging.Pdf.PdfCompression.Zip;
    settings.BackgroundLayerCompressionSettings.JpegQuality = 20;

    settings.ImageSegmentation = 
        new Vintasoft.Imaging.ImageProcessing.Info.ImageSegmentationCommand();
    settings.CreateImagesLayer = false;

    settings.HiQualityMask = false;
    settings.MaskCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jbig2;
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = true;

    settings.CreateFrontLayer = true;
    settings.HiQualityFrontLayer = false;
    settings.FrontLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Zip;
}
    This C#/VB.NET code shows how to compress the document images, which contain text only, using MRC compression algorithm and get the resulting images with high quality. 
    
Public Shared Sub SetSetting_DocumentNoImagesHiQuality(settings As Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings)
    settings.CreateBackgroundLayer = True
    settings.BackgroundLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg Or Vintasoft.Imaging.Pdf.PdfCompression.Zip
    settings.BackgroundLayerCompressionSettings.JpegQuality = 30

    settings.ImageSegmentation = Nothing
    settings.CreateImagesLayer = False

    settings.HiQualityMask = True
    settings.MaskCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jbig2
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = True

    settings.CreateFrontLayer = True
    settings.HiQualityFrontLayer = True
    settings.FrontLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg2000
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionRatio = 300 * 3
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionType = Vintasoft.Imaging.Codecs.ImageFiles.Jpeg2000.Jpeg2000CompressionType.Lossy
End Sub


    
public static void SetSetting_DocumentNoImagesHiQuality(
    Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings settings)
{
    settings.CreateBackgroundLayer = true;
    settings.BackgroundLayerCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jpeg | 
        Vintasoft.Imaging.Pdf.PdfCompression.Zip;
    settings.BackgroundLayerCompressionSettings.JpegQuality = 30;

    settings.ImageSegmentation = null;
    settings.CreateImagesLayer = false;

    settings.HiQualityMask = true;
    settings.MaskCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jbig2;
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = true;

    settings.CreateFrontLayer = true;
    settings.HiQualityFrontLayer = true;
    settings.FrontLayerCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jpeg2000;
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionRatio = 300 * 3;
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionType = 
        Vintasoft.Imaging.Codecs.ImageFiles.Jpeg2000.Jpeg2000CompressionType.Lossy;
}
    This C#/VB.NET code shows how to compress the document images, which contain text only, using MRC compression algorithm and get the resulting images with normal quality. 
    
Public Shared Sub SetSetting_DocumentNoImagesNormal(settings As Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings)
    settings.CreateBackgroundLayer = True
    settings.BackgroundLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg Or Vintasoft.Imaging.Pdf.PdfCompression.Zip
    settings.BackgroundLayerCompressionSettings.JpegQuality = 25

    settings.ImageSegmentation = Nothing
    settings.CreateImagesLayer = False

    settings.HiQualityMask = True
    settings.MaskCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jbig2
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = True

    settings.CreateFrontLayer = True
    settings.HiQualityFrontLayer = False
    settings.FrontLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg2000
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionRatio = 350 * 3
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionType = Vintasoft.Imaging.Codecs.ImageFiles.Jpeg2000.Jpeg2000CompressionType.Lossy
End Sub


    
public static void SetSetting_DocumentNoImagesNormal(
    Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings settings)
{
    settings.CreateBackgroundLayer = true;
    settings.BackgroundLayerCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jpeg | 
        Vintasoft.Imaging.Pdf.PdfCompression.Zip;
    settings.BackgroundLayerCompressionSettings.JpegQuality = 25;

    settings.ImageSegmentation = null;
    settings.CreateImagesLayer = false;

    settings.HiQualityMask = true;
    settings.MaskCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jbig2;
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = true;

    settings.CreateFrontLayer = true;
    settings.HiQualityFrontLayer = false;
    settings.FrontLayerCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jpeg2000;
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionRatio = 350 * 3;
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionType = 
        Vintasoft.Imaging.Codecs.ImageFiles.Jpeg2000.Jpeg2000CompressionType.Lossy;
}
    This C#/VB.NET code shows how to compress the document images, which contain text only, using MRC compression algorithm and get the resulting images with high compression ratio. 
    
Public Shared Sub SetSetting_DocumentNoImagesHiCompression(settings As Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings)
    settings.CreateBackgroundLayer = True
    settings.BackgroundLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg Or Vintasoft.Imaging.Pdf.PdfCompression.Zip
    settings.BackgroundLayerCompressionSettings.JpegQuality = 20

    settings.ImageSegmentation = Nothing
    settings.CreateImagesLayer = False

    settings.HiQualityMask = False
    settings.MaskCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jbig2
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = True

    settings.CreateFrontLayer = True
    settings.HiQualityFrontLayer = False
    settings.FrontLayerCompression = Vintasoft.Imaging.Pdf.PdfCompression.Jpeg2000
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionRatio = 450 * 3
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionType = Vintasoft.Imaging.Codecs.ImageFiles.Jpeg2000.Jpeg2000CompressionType.Lossy
End Sub


    
public static void SetSetting_DocumentNoImagesHiCompression(
    Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings settings)
{
    settings.CreateBackgroundLayer = true;
    settings.BackgroundLayerCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jpeg | 
        Vintasoft.Imaging.Pdf.PdfCompression.Zip;
    settings.BackgroundLayerCompressionSettings.JpegQuality = 20;

    settings.ImageSegmentation = null;
    settings.CreateImagesLayer = false;

    settings.HiQualityMask = false;
    settings.MaskCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jbig2;
    settings.MaskCompressionSettings.Jbig2Settings.Lossy = true;

    settings.CreateFrontLayer = true;
    settings.HiQualityFrontLayer = false;
    settings.FrontLayerCompression = 
        Vintasoft.Imaging.Pdf.PdfCompression.Jpeg2000;
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionRatio = 450 * 3;
    settings.FrontLayerCompressionSettings.Jpeg2000Settings.CompressionType = 
        Vintasoft.Imaging.Codecs.ImageFiles.Jpeg2000.Jpeg2000CompressionType.Lossy;
}

    Inheritance Hierarchy

    System.Object
       Vintasoft.Imaging.Codecs.Encoders.PdfMrcCompressionSettings

    Requirements

    Target Platforms: .NET9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

    See Also

    Reference

    PdfMrcCompressionSettings Members
    Vintasoft.Imaging.Codecs.Encoders Namespace

     

     

    Copyright 2007-2025 VintaSoft LLC. All Rights Reserved.

    Send Feedback