New classes:

public class Vintasoft.Imaging.Pdf.Processing.PdfDocumentRemoveSignatureFieldsCommand	A processing command that removes signature fields from PDF document.
public class Vintasoft.Imaging.Pdf.Processing.PdfFontCharacterCollection	A collection that stores symbol content codes of PDF font.
public class Vintasoft.Imaging.Pdf.Processing.PdfPageInvertCommand	A processing command which inverts the PDF page.
public class Vintasoft.Imaging.Pdf.Processing.Analyzers.PdfDocumentHasSignatureFields	An analyzer, which determines whether PDF document has signature fields.
public class Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA1aConverter	Converts a PDF document to conformance with PDF/A-1a.
public class Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA1aVerifier	Verifies that a PDF document conforms to PDF/A-1a specification.
public class Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA2aConverter	Converts a PDF document to conformance with PDF/A-2a.
public class Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA2aVerifier	Verifies that a PDF document conforms to PDF/A-2a specification.
public class Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA3aConverter	Converts a PDF document to conformance with PDF/A-3a.
public class Vintasoft.Imaging.Pdf.Processing.PdfA.PdfA3aVerifier	Verifies that a PDF document conforms to PDF/A-3a specification.
public class Vintasoft.Imaging.Pdf.Tree.PdfMarkInformation	Provides additional information about structure of PDF document.
public class Vintasoft.Imaging.Pdf.Tree.PdfNameToNameDictionary	The dictionary that contains "name => name" pairs.
public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsage	Represents the optional content usage dictionary, that contains information describing the nature of the content controlled by the group.
public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsageApplication	Represents the usage application dictionary, that specifies which entries in the usage dictionary should be consulted to automatically set the state of optional content groups.
public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsageApplicationList	Represents the list of PdfOptionalContentUsageApplication.
public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsageCreatorInfo	Represents the "CreatorInfo" entry of optional content usage dictionary.
public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsageExport	Represents the "Export" entry of optional content usage dictionary.
public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsagePageElement	Represents the "PageElement" entry of optional content usage dictionary.
public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsagePrint	Represents the "Print" entry of optional content usage dictionary.
public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsageView	Represents the "View" entry of optional content usage dictionary.
public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsageZoom	Represents the "Zoom" entry of optional content usage dictionary.
public class Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfContentObjectReference	Provides information about content object in structure tree.
public class Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfMarkedContentIdentifier	Represents the marked-content identifier of marked-content sequence.
public class Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfMarkedContentReference	Provides information about marked-content in structure tree of PDF document.
public abstract class Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfStructureCompositeNode	Represents a base class for structure elements and structure tree root.
public class Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfStructureElement	Provides information about structure element of PDF document.
public class Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfStructureElementDictionary	The dictionary that contains pairs: StructureElementIdentifier =>PdfStructureElement.
public abstract class Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfStructureTreeNode	Represents a base class for any of structure tree elements.
public class Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfStructureTreeNodeList	Represents the list of PdfStructureTreeNode.
public class Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfStructureTreeRoot	Provides information about a structure tree root of PDF document.

Renamed classes:

public class Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentConfiguration	public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentConfiguration
public class Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentConfigurationList	public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentConfigurationList
public class Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentGroup	public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentGroup
public class Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentGroupList	public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentGroupList
public class Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentMembership	public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentMembership
public class Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentPresentationOrder	public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentPresentationOrder
public class Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentProperties	public class Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentProperties

Changed classes:

Vintasoft.Imaging.Codecs.Decoders.PdfDecoder
Added methods
	public Vintasoft.Imaging.VintasoftImage GetThumbnail(int, System.Drawing.Size, Vintasoft.Imaging.Codecs.Decoders.DecodingSettings, Vintasoft.Imaging.Codecs.Decoders.RenderingSettings, Vintasoft.Imaging.Utils.IActionProgressController)	Returns a thumbnail image of the specified page of the PDF document.

Vintasoft.Imaging.Codecs.Encoders.PdfEncoder
Added methods
	public Vintasoft.Imaging.Codecs.Encoders.EncoderSettings CreateSettingsFromImage(Vintasoft.Imaging.VintasoftImage)	Creates new encoder settings similar to the settings with which the image was encoded.
	public void SetSettingsFromImage(Vintasoft.Imaging.VintasoftImage)	Sets new encoder settings similar to the encoder settings with which image was encoded.

Vintasoft.Imaging.Pdf.PdfDocument
Added properties
	public Vintasoft.Imaging.Pdf.Tree.PdfMarkInformation MarkedInformation { get; set; }	Gets or sets information about the document's usage of Tagged PDF conventions.
	public Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfStructureTreeRoot StructureTree { get; set; }	Gets or sets the document's structure tree root dictionary.
Changed properties
	public Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentConfiguration OptionalContentConfiguration { get; set; }	public Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentConfiguration OptionalContentConfiguration { get; set; }
	public Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentProperties OptionalContentProperties { get; set; }	public Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentProperties OptionalContentProperties { get; set; }
Changed methods
	public bool ConvertDocument(Vintasoft.Imaging.Pdf.PdfDocumentConformance)	public void ConvertDocument(Vintasoft.Imaging.Pdf.PdfDocumentConformance)

Vintasoft.Imaging.Pdf.PdfFormat
Added properties
	public Vintasoft.Imaging.Pdf.PdfFormat Pdf_20 { get; }	Static instance of the PDF 2.0 with compressed XREF table format.

Vintasoft.Imaging.Pdf.PdfRenderingSettings
Added properties
	public bool IgnoreOptionalContentUsageAutoStateFlag { get; set; }	Determines that the AutoStates should be ignored.
	public Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsageApplicationEvent OptionalContentUsageApplicationEvent { get; set; }	Determines the event when AutoStates should be used.

Vintasoft.Imaging.Pdf.RegionF
Changed methods
	public void Transform(Vintasoft.Imaging.Utils.AffineMatrix)	public void Transform(Vintasoft.Imaging.AffineMatrix)

Vintasoft.Imaging.Pdf.Content.PdfContentXObject
Changed properties
	public Vintasoft.Imaging.Utils.AffineMatrix CTM { get; }	public Vintasoft.Imaging.AffineMatrix CTM { get; }

Vintasoft.Imaging.Pdf.Content.PdfGraphicsState
Changed properties
	public Vintasoft.Imaging.Utils.AffineMatrix CTM { get; set; }	public Vintasoft.Imaging.AffineMatrix CTM { get; set; }
	public Vintasoft.Imaging.Utils.AffineMatrix TextLineMatrix { get; set; }	public Vintasoft.Imaging.AffineMatrix TextLineMatrix { get; set; }
	public Vintasoft.Imaging.Utils.AffineMatrix TextMatrix { get; set; }	public Vintasoft.Imaging.AffineMatrix TextMatrix { get; set; }

Vintasoft.Imaging.Pdf.Content.ImageExtraction.ContentImage
Changed properties
	public Vintasoft.Imaging.Utils.AffineMatrix CTM { get; }	public Vintasoft.Imaging.AffineMatrix CTM { get; }

Vintasoft.Imaging.Pdf.Content.TextExtraction.PdfTextRegion
Added methods
	public Vintasoft.Imaging.Pdf.Content.TextExtraction.PdfTextRegion ExtractContainedRegion(Vintasoft.Imaging.Pdf.Content.TextExtraction.PdfTextRegion, System.Drawing.RectangleF[])	Extracts the text region that contains symbols, which are contained in region that specifies set of rectangles.
	public Vintasoft.Imaging.Pdf.Content.TextExtraction.PdfTextRegion ExtractIntersectedRegion(Vintasoft.Imaging.Pdf.Content.TextExtraction.PdfTextRegion, System.Drawing.RectangleF[])	Extracts the text region that contains symbols, which are intersected with region that specifies set of rectangles.

Vintasoft.Imaging.Pdf.Content.TextExtraction.PdfTextSymbol
Added properties
	public bool HasCharacterSequence { get; }	Gets a value indicating whether this text symbol is represented by a sequence of Unicode characters.
	public string Symbols { get; }	Gets a string that contains Unicode characters of this text symbol.

Vintasoft.Imaging.Pdf.Drawing.PdfGraphics
Added methods
	public void AddMarkedContentPoint(string)	Adds a marked-content point to the content stream.
	public void AddMarkedContentPoint(string, string)	Adds a marked-content point with an associated property list to the content stream.
	public void AddMarkedContentPoint(string, System.Collections.Generic.KeyValuePair<string,Vintasoft.Imaging.Pdf.BasicTypes.PdfBasicObject>)	Adds a marked-content point with an associated property list to the content stream.
	public void BeginMarkedContent(string)	Begins a marked-content sequence in the content stream.
	public void BeginMarkedContent(string, System.Collections.Generic.KeyValuePair<string,Vintasoft.Imaging.Pdf.BasicTypes.PdfBasicObject>)	Begins a marked-content sequence with an associated property list in the content stream.
	public void BeginMarkedContent(string, string)	Begins a marked-content sequence with an associated property list in the content stream.
	public void BeginMarkedContent(string, Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfMarkedContentIdentifier)	Begins a marked-content sequence with specified marked-content identifier.
	public void BeginMarkedContent(string, int)	Begin a marked-content sequence with specified marked-content identifier.
	public void EndMarkedContent()	Ends the marked content sequence, which have been previously defined using the BeginMarkedContent method.
Changed methods
	public void BeginOptionalContent(Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentGroup)	public void BeginOptionalContent(Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentGroup)
	public void MultiplyTransform(Vintasoft.Imaging.Utils.AffineMatrix)	public void MultiplyTransform(Vintasoft.Imaging.AffineMatrix)

Vintasoft.Imaging.Pdf.Drawing.GraphicsFigures.GraphicsFigureGroup
Changed properties
	public Vintasoft.Imaging.Utils.AffineMatrix Transform { get; set; }	public Vintasoft.Imaging.AffineMatrix Transform { get; set; }

Vintasoft.Imaging.Pdf.Processing.PdfDocumentVerifier
Added methods
	public Vintasoft.Imaging.Pdf.Processing.PdfDocumentVerifier Create(Vintasoft.Imaging.Pdf.PdfDocumentConformance)	Creates a PDF document verifier that allows to verify PDF document to the conformance with specified standard.

Vintasoft.Imaging.Pdf.Processing.PdfFixups
Added properties
	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.PdfDocument> DocumentHasCharacterReferencesNotdefGlyphFixup { get; }	Gets the fixup of DocumentHasCharacterReferencesNotdefGlyph.
	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.PdfDocument> DocumentMetadataDoesNotConformToPdfA1aFixup { get; }	Gets the fixup of DocumentMetadataDoesNotConformToPdfA1a.
	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.PdfDocument> DocumentMetadataDoesNotConformToPdfA2aFixup { get; }	Gets the fixup of DocumentMetadataDoesNotConformToPdfA2a.
	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.PdfDocument> DocumentMetadataDoesNotConformToPdfA3aFixup { get; }	Gets the fixup of DocumentMetadataDoesNotConformToPdfA3a.
	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.Processing.PdfFontProcessingParams> FontHasVisibleCharacterWithoutUnicodeValueA1aFixup { get; }	Gets the fixup of FontHasVisibleCharacterWithoutUnicodeValueA1a.
	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.Processing.PdfFontProcessingParams> FontHasVisibleCharacterWithoutUnicodeValueA2aFixup { get; }	Gets the fixup of FontHasVisibleCharacterWithoutUnicodeValueA2a.
	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfStructureElement> StructureElementTypeIsMissingFixup { get; }	Gets the fixup of StructureElementTypeIsMissing
Changed properties
	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentConfiguration> OptionalContentConfigurationContainsUsageApplicationDictionariesFixup { get; }	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentConfiguration> OptionalContentConfigurationContainsUsageApplicationDictionariesFixup { get; }
	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentConfiguration> OptionalContentConfigurationOrderDoesNotContainAllOCGsOfDocumentFixup { get; }	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentConfiguration> OptionalContentConfigurationOrderDoesNotContainAllOCGsOfDocumentFixup { get; }
	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentProperties> OptionalContentPropertiesHaveNotUniqueConfigurationNamesFixup { get; }	public Vintasoft.Imaging.Processing.ProcessingCommand<Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentProperties> OptionalContentPropertiesHaveNotUniqueConfigurationNamesFixup { get; }

Vintasoft.Imaging.Pdf.Processing.Analyzers.PdfAnalyzers
Added properties
	public Vintasoft.Imaging.Pdf.Processing.Analyzers.PdfDocumentHasSignatureFields DocumentHasSignatureFields { get; }	Gets the analyzer, which gets information whether PDF document has signature fields.

Vintasoft.Imaging.Pdf.Processing.Analyzers.PdfTriggers
Added properties
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.PdfDocument> DocumentHasCharacterReferencesNotdefGlyph { get; }	Gets the trigger that is activated if document has content stream that contains character that is mapped to the .notdef glyph.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.PdfDocumentCatalog> DocumentMarkInformationIsMissing { get; }	Gets the trigger that is activated if document mark information is missing.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.PdfDocument> DocumentMetadataDoesNotConformToPdfA1a { get; }	Gets the trigger that is activated if document metadata does not conform to PDF/A-1a.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.PdfDocument> DocumentMetadataDoesNotConformToPdfA2a { get; }	Gets the trigger that is activated if document metadata does not conform to PDF/A-2a.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.PdfDocument> DocumentMetadataDoesNotConformToPdfA3a { get; }	Gets the trigger that is activated if document metadata does not conform to PDF/A-3a.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.PdfDocumentCatalog> DocumentStructureTreeRootIsMissing { get; }	Gets the trigger that is activated if document structure tree root is missing.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Processing.PdfFontProcessingParams> FontHasVisibleCharactersWithInappropriateUnicodeValue { get; }	Gets the trigger that is activated if PDF font has visible characters, which use inappropriate Unicode Value.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Processing.PdfFontProcessingParams> FontHasVisibleCharactersWithUnicodeValueFromUnicodePuaRange { get; }	Gets the trigger that is activated if PDF font has visible characters, which use Unicode value from Unicode Private Use Area.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Processing.PdfFontProcessingParams> FontHasVisibleCharactersWithZeroUnicodeValue { get; }	Gets the trigger that is activated if PDF font has visible characters, which use zero Unicode Value.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Processing.PdfFontProcessingParams> FontHasVisibleCharacterWithoutUnicodeValueA1a { get; }	Gets the trigger that is activated if PDF Font has visible character without Unicode value according to PDF/A-1a specification.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Processing.PdfFontProcessingParams> FontHasVisibleCharacterWithoutUnicodeValueA2a { get; }	Gets the trigger that is activated if PDF font has visible character without Unicode value according to PDF/A-2a specification.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.PdfFormXObjectResource> FormXObjectBBoxEntryIsMissing { get; }	Gets the trigger that is activated if Form XObject BBox entry is missing.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.PdfMarkInformation> MarkInformationMarkedIsNotTrue { get; }	Gets the trigger that is activated if Mark Information Marked property is not set to true.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfStructureElement> StructureElementStructureTypeIsNotStandard { get; }	Gets the trigger that is activated if Structure Element structure type is not standard type.
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.StructureTree.PdfStructureElement> StructureElementTypeIsMissing { get; }	Gets the trigger that is activated if Structure Element 'Type' entry is missing.
Renamed properties
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Processing.PdfFontProcessingParams> EmbeddedFontUsesNotdefGlyph { get; }	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Processing.PdfFontProcessingParams> FontHasCharacterReferencesNotdefGlyph { get; }
Changed properties
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentConfiguration> OptionalContentConfigurationContainsUsageApplicationDictionaries { get; }	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentConfiguration> OptionalContentConfigurationContainsUsageApplicationDictionaries { get; }
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentConfiguration> OptionalContentConfigurationOrderDoesNotContainAllOCGsOfDocument { get; }	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentConfiguration> OptionalContentConfigurationOrderDoesNotContainAllOCGsOfDocument { get; }
	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentProperties> OptionalContentPropertiesHaveNotUniqueConfigurationNames { get; }	public Vintasoft.Imaging.Processing.Trigger<Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentProperties> OptionalContentPropertiesHaveNotUniqueConfigurationNames { get; }

Vintasoft.Imaging.Pdf.Tree.PdfFormXObjectResource
Changed properties
	public Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentGroup OptionalContentGroup { get; set; }	public Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentGroup OptionalContentGroup { get; set; }
	public Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentMembership OptionalContentMembership { get; set; }	public Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentMembership OptionalContentMembership { get; set; }
Added constructors
	public void PdfFormXObjectResource(Vintasoft.Imaging.Pdf.PdfDocument, Vintasoft.Imaging.Pdf.Tree.PdfPage, System.Drawing.RectangleF)	Initializes a new instance of the PdfFormXObjectResource class.

Vintasoft.Imaging.Pdf.Tree.PdfImageResource
Changed properties
	public Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentGroup OptionalContentGroup { get; set; }	public Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentGroup OptionalContentGroup { get; set; }
	public Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentMembership OptionalContentMembership { get; set; }	public Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentMembership OptionalContentMembership { get; set; }

Vintasoft.Imaging.Pdf.Tree.PdfPage
Changed methods
	public Vintasoft.Imaging.Utils.AffineMatrix GetPageRotateCropAffineTransform()	public Vintasoft.Imaging.AffineMatrix GetPageRotateCropAffineTransform()
	public Vintasoft.Imaging.Utils.AffineMatrix GetTrasformFromImageSpaceToPageSpace(Vintasoft.Imaging.Resolution)	public Vintasoft.Imaging.AffineMatrix GetTrasformFromImageSpaceToPageSpace(Vintasoft.Imaging.Resolution)
	public Vintasoft.Imaging.Utils.AffineMatrix GetTrasformFromPageSpaceToImageSpace(Vintasoft.Imaging.Resolution)	public Vintasoft.Imaging.AffineMatrix GetTrasformFromPageSpaceToImageSpace(Vintasoft.Imaging.Resolution)

Vintasoft.Imaging.Pdf.Tree.PdfTreeNodeBase
Added methods
	public Vintasoft.Imaging.Pdf.Tree.PdfTreeNodeBase[] GetLinearizedSubtree()	Returns linearized subtree that starts from current node.
	public Vintasoft.Imaging.Pdf.Tree.PdfTreeNodeBase[] GetLinearizedSubtree(Vintasoft.Imaging.Processing.Analyzers.PredicateAnalyzer<Vintasoft.Imaging.Pdf.Tree.PdfTreeNodeBase>)	Returns linearized subtree that starts from current node and contains only nodes that allowed by predicate.
	public Vintasoft.Imaging.Pdf.Tree.PdfTreeNodeBase[] GetLinearizedSubtree(Vintasoft.Imaging.Utils.IActionProgressController, Vintasoft.Imaging.Processing.Analyzers.PredicateAnalyzer<Vintasoft.Imaging.Pdf.Tree.PdfTreeNodeBase>)	Returns linearized subtree that starts from current node and contains only nodes that allowed by predicate.

Vintasoft.Imaging.Pdf.Tree.Annotations.PdfAnnotation
Changed properties
	public Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentGroup OptionalContentGroup { get; set; }	public Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentGroup OptionalContentGroup { get; set; }
Changed methods
	public Vintasoft.Imaging.Utils.AffineMatrix GetTransformFromAnnotationToPageSpace()	public Vintasoft.Imaging.AffineMatrix GetTransformFromAnnotationToPageSpace()
	public void MultiplyTransform(Vintasoft.Imaging.Utils.AffineMatrix)	public void MultiplyTransform(Vintasoft.Imaging.AffineMatrix)

Vintasoft.Imaging.Pdf.Tree.Fonts.PdfFont
Added methods
	public string ConvertToUnicodeString(ulong)	Converts the character code in the font encoding to the string with Unicode encoding.

New enumerations:

public enum Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsageApplicationCategory	Specifies the category that optional content group should use to get the state.
public enum Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsagePageElementSubtype	Specifies the subtype of optional content.
public enum Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentUsageApplicationEvent	Specifies the events when the usage application dictionary should be used.

Renamed enumerations:

public enum Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentConfigurationBaseState	public enum Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentConfigurationBaseState
public enum Vintasoft.Imaging.Pdf.Tree.PdfOptionalContentIntent	public enum Vintasoft.Imaging.Pdf.Tree.OptionalContent.PdfOptionalContentIntent

API changes in Vintasoft.Imaging.Pdf.UI.dll

New classes:

public class Vintasoft.Imaging.Pdf.UI.PdfCropSelectionTool

A visual tool for cropping of PDF page or image in image viewer.

Changed classes:

Vintasoft.Imaging.Pdf.UI.PdfVisualTool
Changed methods
	public System.Drawing.PointF PointFromPageSpaceToViewerSpace(System.Drawing.PointF)	public System.Drawing.PointF PointFromPageSpaceToViewerSpace(System.Drawing.PointF, Vintasoft.Imaging.VintasoftImage)
	public System.Drawing.PointF PointFromViewerSpaceToPageSpace(System.Drawing.PointF)	public System.Drawing.PointF PointFromViewerSpaceToPageSpace(System.Drawing.PointF, Vintasoft.Imaging.VintasoftImage)
	public void PointsFromPageSpaceToViewerSpace(System.Drawing.PointF[])	public void PointsFromPageSpaceToViewerSpace(System.Drawing.PointF[], Vintasoft.Imaging.VintasoftImage)
	public void PointsFromPageSpaceToViewerSpace(System.Drawing.PointF[], System.Drawing.PointF[])	public void PointsFromPageSpaceToViewerSpace(Vintasoft.Imaging.VintasoftImage, System.Drawing.PointF[], System.Drawing.PointF[])
	public void PointsFromPageSpaceToViewerSpace(Vintasoft.Imaging.UI.ImageViewer, System.Drawing.PointF[])	public void PointsFromPageSpaceToViewerSpace(Vintasoft.Imaging.UI.ImageViewer, Vintasoft.Imaging.VintasoftImage, System.Drawing.PointF[])
	public void PointsFromViewerSpaceToPageSpace(System.Drawing.PointF[])	public void PointsFromViewerSpaceToPageSpace(System.Drawing.PointF[], Vintasoft.Imaging.VintasoftImage)
	public void PointsFromViewerSpaceToPageSpace(System.Drawing.Point[], System.Drawing.PointF[])	public void PointsFromViewerSpaceToPageSpace(Vintasoft.Imaging.VintasoftImage, System.Drawing.Point[], System.Drawing.PointF[])
	public void PointsFromViewerSpaceToPageSpace(Vintasoft.Imaging.UI.ImageViewer, System.Drawing.PointF[])	public void PointsFromViewerSpaceToPageSpace(Vintasoft.Imaging.UI.ImageViewer, Vintasoft.Imaging.VintasoftImage, System.Drawing.PointF[])

Vintasoft.Imaging.Pdf.UI.Annotations.PdfAnnotationTool
Added properties
	public bool IsFocusedAnnotationBuilding { get; }	Gets a value indicating whether focused annotation is building.

Vintasoft.Imaging.Pdf.UI.PdfTextSelectionTool
Added properties
	public bool HasSelectedText { get; }	Gets a value indicating whether text is selected on one or several PDF pages in image viewer.
	public bool IsMultipageModeSupported { get; }	Gets a value indicating whether this tool supports multipage mode.
	public bool IsNavigationEnabled { get; set; }	Gets or sets a value indicating whether the text navigation is enabled.
	public bool IsSelectionEnabled { get; set; }	Gets or sets a value indicating whether the text selection is enabled.
	public string SelectedText { get; }	Gets a text, which is selected on one or several PDF pages in image viewer.
Added methods
	public void SelectAll(Vintasoft.Imaging.VintasoftImage)	Selects all text on specified PDF page in image viewer.
	public void SetSelectedRegion(Vintasoft.Imaging.Pdf.Content.TextExtraction.PdfTextRegion)	Sets the selected region on focused PDF page in image viewer.
	public void SetSelectedRegion(Vintasoft.Imaging.Pdf.Content.TextExtraction.PdfTextRegion, Vintasoft.Imaging.VintasoftImage)	Sets the selected region on specified PDF page in image viewer.
Added events
	public event System.EventHandler<Vintasoft.Imaging.ProgressEventArgs> TextExtractionProgress	Occurs when the text extractiong progress is changed.

Vintasoft.Imaging.Pdf.UI.GraphicsFigureView
Changed methods
	public Vintasoft.Imaging.Utils.PointFTransform GetPointTransform(Vintasoft.Imaging.UI.ImageViewer)	public Vintasoft.Imaging.PointFTransform GetPointTransform(Vintasoft.Imaging.UI.ImageViewer)
	public Vintasoft.Imaging.Utils.PointFTransform GetPointTransform(Vintasoft.Imaging.UI.ImageViewer, Vintasoft.Imaging.VintasoftImage)	public Vintasoft.Imaging.PointFTransform GetPointTransform(Vintasoft.Imaging.UI.ImageViewer, Vintasoft.Imaging.VintasoftImage)

Vintasoft.Imaging.Pdf.UI.RedactionMark
Changed methods
	public Vintasoft.Imaging.Utils.PointFTransform GetPointTransform(Vintasoft.Imaging.UI.ImageViewer, Vintasoft.Imaging.VintasoftImage)	public Vintasoft.Imaging.PointFTransform GetPointTransform(Vintasoft.Imaging.UI.ImageViewer, Vintasoft.Imaging.VintasoftImage)

API changes in Vintasoft.Imaging.Pdf.Wpf.UI.dll

New classes:

public class Vintasoft.Imaging.Pdf.Wpf.UI.WpfPdfCropSelectionTool

A visual tool for cropping of PDF page or image in WPF image viewer.

Changed classes:

Vintasoft.Imaging.Pdf.Wpf.UI.WpfPdfVisualTool
Renamed methods
	public System.Windows.Point PointFromPageSpaceToViewerSpace(System.Windows.Point)	public System.Windows.Point PointFromPageSpaceToVisualToolSpace(System.Windows.Point)
	public System.Windows.Point PointFromViewerSpaceToPageSpace(System.Windows.Point)	public System.Windows.Point PointFromVisualToolSpaceToPageSpace(System.Windows.Point)
	public void PointsFromPageSpaceToViewerSpace(System.Windows.Point[])	public void PointsFromPageSpaceToVisualToolSpace(System.Windows.Point[])
	public void PointsFromPageSpaceToViewerSpace(Vintasoft.Imaging.Wpf.UI.WpfImageViewer, System.Windows.Point[])	public void PointsFromPageSpaceToVisualToolSpace(Vintasoft.Imaging.Wpf.UI.WpfImageViewer, System.Windows.Point[])
	public void PointsFromPageSpaceToViewerSpace(System.Windows.Point[], System.Windows.Point[])	public void PointsFromPageSpaceToVisualToolSpace(System.Windows.Point[], System.Windows.Point[])
	public void PointsFromViewerSpaceToPageSpace(System.Windows.Point[])	public void PointsFromVisualToolSpaceToPageSpace(System.Windows.Point[])
	public void PointsFromViewerSpaceToPageSpace(Vintasoft.Imaging.Wpf.UI.WpfImageViewer, System.Windows.Point[])	public void PointsFromVisualToolSpaceToPageSpace(Vintasoft.Imaging.Wpf.UI.WpfImageViewer, System.Windows.Point[])
	public void PointsFromViewerSpaceToPageSpace(System.Windows.Point[], System.Windows.Point[])	public void PointsFromVisualToolSpaceToPageSpace(System.Windows.Point[], System.Windows.Point[])

Vintasoft.Imaging.Pdf.Wpf.UI.WpfPdfContentXObjectTool
Renamed methods
	public Vintasoft.Imaging.Pdf.Content.PdfContentXObject[] FindXObjectsInViewerSpace(System.Windows.Point)	public Vintasoft.Imaging.Pdf.Content.PdfContentXObject[] FindXObjectsInVisualToolSpace(System.Windows.Point)

Vintasoft.Imaging.Pdf.Wpf.UI.WpfPdfTextSelectionTool
Added properties
	public bool HasSelectedText { get; }	Gets a value indicating whether text is selected on one or several PDF pages in image viewer.
	public bool IsMultipageModeSupported { get; }	Gets a value indicating whether this tool supports multipage mode.
	public bool IsNavigationEnabled { get; set; }	Determines that text navigation is enabled.
	public bool IsSelectionEnabled { get; set; }	Determines that text selection is enabled.
	public string SelectedText { get; }	Gets a text, which is selected on one or several PDF pages in image viewer.
Added methods
	public void SelectAll(Vintasoft.Imaging.VintasoftImage)	Selects all text on specified PDF page in image viewer.
	public void SetSelectedRegion(Vintasoft.Imaging.Pdf.Content.TextExtraction.PdfTextRegion)	Sets the selected region on focused PDF page in image viewer.
	public void SetSelectedRegion(Vintasoft.Imaging.Pdf.Content.TextExtraction.PdfTextRegion, Vintasoft.Imaging.VintasoftImage)	Sets the selected region on specified PDF page in image viewer.
Reanmed methods
	public void SelectInControlSpace(System.Windows.Point, System.Windows.Point)	public void SelectInVisualToolSpace(System.Windows.Point, System.Windows.Point)
Added events
	public event System.EventHandler<Vintasoft.Imaging.ProgressEventArgs> TextExtractionProgress	Occurs when the text extraction progress is changed.

Vintasoft.Imaging.Pdf.Wpf.UI.Annotations.WpfPdfAnnotationTool
Added properties
	public bool IsFocusedAnnotationBuilding { get; }	Gets a value indicating whether focused annotation is building.

Vintasoft.Imaging.Pdf.Wpf.UI.WpfGraphicsFigureView
Changed methods
	public Vintasoft.Imaging.Wpf.Utils.WpfPointTransform GetPointTransform(Vintasoft.Imaging.Wpf.UI.WpfImageViewer)	public Vintasoft.Imaging.Wpf.WpfPointTransform GetPointTransform(Vintasoft.Imaging.Wpf.UI.WpfImageViewer)
	public Vintasoft.Imaging.Wpf.Utils.WpfPointTransform GetPointTransform(Vintasoft.Imaging.Wpf.UI.WpfImageViewer, Vintasoft.Imaging.VintasoftImage)	public Vintasoft.Imaging.Wpf.WpfPointTransform GetPointTransform(Vintasoft.Imaging.Wpf.UI.WpfImageViewer, Vintasoft.Imaging.VintasoftImage)

Vintasoft.Imaging.Pdf.Wpf.UI.Annotations.WpfPdfWidgetAnnotationView
Added constructors
	public void WpfPdfWidgetAnnotationView(Vintasoft.Imaging.Pdf.Tree.Annotations.PdfWidgetAnnotation)	Initializes a new instance of the WpfPdfWidgetAnnotationView class.

Vintasoft.Imaging.Pdf.Wpf.UI.WpfRedactionMark
Changed methods
	public Vintasoft.Imaging.Wpf.Utils.WpfPointTransform GetPointTransform(Vintasoft.Imaging.Wpf.UI.WpfImageViewer, Vintasoft.Imaging.VintasoftImage)	public Vintasoft.Imaging.Wpf.WpfPointTransform GetPointTransform(Vintasoft.Imaging.Wpf.UI.WpfImageViewer, Vintasoft.Imaging.VintasoftImage)