Other Enums
The following enums are available globally.
-
List of documented errors within the PSPDFAESCryptoInputStream.
Note
Used in the PSPDFAESCryptoInputStream -(NSError *)streamError method.Declaration
Objective-C
enum PSPDFAESCryptoInputStreamErrorCode {}
Swift
typealias AESCryptoInputStreamError.Code._ErrorType = AESCryptoInputStreamError
-
List of documented errors within the PSPDFAESCryptoOutputStream.
Note
Used in the PSPDFAESCryptoOutputStream -(NSError *)streamError method.Declaration
Objective-C
enum PSPDFAESCryptoOutputStreamErrorCode {}
Swift
typealias AESCryptoOutputStreamError.Code._ErrorType = AESCryptoOutputStreamError
-
The possible types of start- and end-point for line annotations.
See moreDeclaration
Objective-C
enum PSPDFLineEndType {}
Swift
@frozen enum EndType : Int
-
Defines the type of an action that is defined in the PDF spec. See the Adobe PDF Specification for more about actions and action types.
See moreDeclaration
Objective-C
enum PSPDFActionType {}
Swift
@frozen enum Kind : UInt8
-
PDF Annotation types.
These options can be combined for fetching several types of annotations from a document or annotation provider. However, a single annotation must have a single type.
See moreDeclaration
Objective-C
enum PSPDFAnnotationType {}
Swift
struct Kind : OptionSet
-
Annotation border style types.
See moreDeclaration
Objective-C
enum PSPDFAnnotationBorderStyle {}
Swift
@frozen enum BorderStyle : UInt
-
Border effect names. See PDF Reference 1.5, 1.6. (Table 167).
See moreDeclaration
Objective-C
enum PSPDFAnnotationBorderEffect {}
Swift
@frozen enum BorderEffect : Int
-
A set of flags specifying various characteristics of the annotation. PSPDFKit doesn’t support all of those flag settings.
See moreDeclaration
Objective-C
enum PSPDFAnnotationFlags {}
Swift
struct Flag : OptionSet
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Trigger events for certain viewer actions. See PDF Reference 1.7, 423ff.
See moreDeclaration
Objective-C
enum PSPDFAnnotationTriggerEvent {}
Swift
@frozen enum TriggerEvent : UInt8
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFVerticalAlignment) { PSPDFVerticalAlignmentTop = 0, PSPDFVerticalAlignmentCenter = 1, PSPDFVerticalAlignmentBottom = 2, PSPDFVerticalAlignmentNone = 3 }
Swift
@frozen enum VerticalAlignment : UInt
-
Categories for the author-specific state that may be associated with an annotation.
See moreDeclaration
Objective-C
enum PSPDFAnnotationAuthorStateModel {}
-
The sort order is currently used for bookmarks.
See moreDeclaration
Objective-C
enum PSPDFBookmarkManagerSortOrder {}
Swift
@frozen enum SortOrder : UInt
-
Form field flags specific to button fields, matching bit positions in the PDF specification.
See moreDeclaration
Objective-C
enum PSPDFButtonFlag {}
Swift
struct ButtonFlag : OptionSet
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSInteger, PSPDFCacheStoragePolicy) { PSPDFCacheStoragePolicyAutomatic = 0, PSPDFCacheStoragePolicyAllowed, PSPDFCacheStoragePolicyAllowedInMemoryOnly, PSPDFCacheStoragePolicyNotAllowed, }
Swift
@frozen enum StoragePolicy : Int
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSInteger, PSPDFCacheStatus) { PSPDFCacheStatusNotCached, PSPDFCacheStatusInMemory, PSPDFCacheStatusOnDisk, }
Swift
@frozen enum Status : Int
-
See morePSPDFCacheImageSizeMatching
is a bit mask that can be used to control how the cache determines if an image’s size matches a given request.Declaration
Objective-C
enum PSPDFCacheImageSizeMatching {}
Swift
struct ImageSizeMatching : OptionSet
-
Form field flags specific to choice fields, matching bit positions in the PDF specification.
See moreDeclaration
Objective-C
enum PSPDFChoiceFlag {}
Swift
struct ChoiceFlag : OptionSet
-
Undocumented
See moreDeclaration
Objective-C
NS_ERROR_ENUM(PSPDFCryptorErrorDomain, PSPDFCryptorErrorCode) { PSPDFCryptorErrorFailedToInitCryptor = 100, PSPDFCryptorErrorFailedToProcessFile = 110, PSPDFCryptorErrorInvalidIV = 200, PSPDFCryptorErrorWritingOutputFile = 600, PSPDFCryptorErrorReadingInputFile = 700, }
Swift
typealias CryptorError.Code._ErrorType = CryptorError
-
Specifies which types of operations the data provider supports. Every data provider must support reading.
See moreDeclaration
Objective-C
enum PSPDFDataProvidingAdditionalOperations {}
Swift
struct DataProvidingAdditionalOperations : OptionSet
-
Specifies the type of
See morePSPDFDataSink
you’re requesting.Declaration
Objective-C
enum PSPDFDataSinkOptions {}
Swift
struct DataSinkOptions : OptionSet
-
The different transform methods (see Section 8.7.1, “Transform Methods”). DocMDP — Used to detect modifications to a document relative to a signature field that is signed by the originator of a document; see “DocMDP” on page 731. UR — Used to detect modifications to a document that would invalidate a signature in a rights-enabled document; see “UR” on page 733. FieldMDP — Used to detect modifications to a list of form fields specified in TransformParams; see “FieldMDP” on page 736. Identity — Used when signing a single object, which is specified by the value of Data in the signature reference dictionary (see Table 8.103). This transform method supports signing of FDF files. See “Identity” on page 737 for details.
See moreDeclaration
Objective-C
enum PSPDFDigitalSignatureReferenceTransformMethod {}
Swift
@frozen enum TransformMethod : UInt
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSInteger, PSPDFDiskCacheFileFormat) { /// JPEG encoding. PSPDFDiskCacheFileFormatJPEG, /// PNG encoding. PSPDFDiskCacheFileFormatPNG, }
Swift
@frozen enum FileFormat : Int
-
Document saving strategy.
See moreDeclaration
Objective-C
enum PSPDFDocumentSaveStrategy {}
Swift
@frozen enum SaveStrategy : Int
-
Returns if JavaScript code can execute on this document.
See moreDeclaration
Objective-C
enum PSPDFJavaScriptStatus {}
Swift
@frozen enum JavaScriptStatus : Int
-
Annotations can be saved in the PDF or alongside in an external file.
See moreDeclaration
Objective-C
enum PSPDFAnnotationSaveMode {}
Swift
@frozen enum AnnotationSaveMode : Int
-
Creates annotations based on the text content. See
See moreannotationsByDetectingLinkTypes:forPagesAtIndexes:options:progress:error:
.Declaration
Objective-C
enum PSPDFTextCheckingType {}
Swift
struct TextCheckingType : OptionSet
-
The strategy used by the
See morePSPDFDocumentCheckpointer
to save checkpoints.Declaration
Objective-C
enum PSPDFDocumentCheckpointingStrategy {}
Swift
@frozen enum DocumentCheckpointingStrategy : UInt
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSInteger, PSPDFDocumentOrientation) { PSPDFDocumentOrientationPortrait, PSPDFDocumentOrientationLandscape, }
Swift
@frozen enum PDFDocumentOrientation : Int
-
A set of flags specifying which operations shall be permitted when the document is opened with user access.
See moreDeclaration
Objective-C
enum PSPDFDocumentPermissions {}
Swift
struct DocumentPermissions : OptionSet
-
An enumeration that specifies document permissions level.
See moreDeclaration
Objective-C
enum PSPDFDocumentPermissionsLevel {}
Swift
@frozen enum DocumentPermissionsLevel : UInt
-
The algorithm to use to encrypt a document.
See moreDeclaration
Objective-C
enum PSPDFDocumentEncryptionAlgorithm {}
Swift
@frozen enum DocumentEncryptionAlgorithm : UInt
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFDownloadManagerObjectState) { PSPDFDownloadManagerObjectStateNotHandled, PSPDFDownloadManagerObjectStateWaiting, PSPDFDownloadManagerObjectStateLoading, PSPDFDownloadManagerObjectStateFailed, }
Swift
@frozen enum ObjectState : UInt
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFEditingOperation) { /// One page was removed. `affectedPageIndex` specifies which index. PSPDFEditingOperationRemove, /// The page at `affectedPageIndex` was moved to `pageIndexDestination`. PSPDFEditingOperationMove, /// One page was inserted at `affectedPageIndex`. PSPDFEditingOperationInsert, /// The page at `affectedPageIndex` was rotated. PSPDFEditingOperationRotate, /// One page reference was inserted at `affectedPageIndex`. PSPDFEditingOperationInsertReference }
Swift
@frozen enum Operation : UInt
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFEmbeddedGoToActionTarget) { /// Not yet supported PSPDFEmbeddedGoToActionTargetParentOfCurrentDocument, PSPDFEmbeddedGoToActionTargetChildOfCurrentDocument, }
Swift
@frozen enum Target : UInt
-
List of documented errors within the
PSPDFErrorDomain
.Note
Various PSPDFKit methods can also return errors from Apple error domains.Declaration
Objective-C
enum PSPDFErrorCode {}
Swift
typealias PSPDFKitError.Code._ErrorType = PSPDFKitError
-
The types of conflicts that PSPDFKit can detect.
See moreDeclaration
Objective-C
enum PSPDFFileConflictType {}
Swift
enum FileConflictType : UInt
-
Defines all the available types a form field can be.
See moreDeclaration
Objective-C
enum PSPDFFormFieldType {}
Swift
@frozen enum Kind : UInt
-
The free text annotation intent type. (Optional; PDF 1.6)
See moreDeclaration
Objective-C
enum PSPDFFreeTextAnnotationIntent {}
Swift
@frozen enum Intent : Int
-
Specifies how a
See morePSPDFImageDocument
should save its contents.Declaration
Objective-C
enum PSPDFImageSaveMode {}
Swift
@frozen enum SaveMode : Int
-
Declares all possible feature flags in a license.
See moreDeclaration
Objective-C
enum PSPDFFeatureMask {}
Swift
struct Features : OptionSet
-
Represents the status of a document in the library.
See moreDeclaration
Objective-C
enum PSPDFLibraryIndexStatus {}
Swift
@frozen enum IndexStatus : UInt
-
Specifies the version of FTS the PSPDFLibrary should use.
See moreDeclaration
Objective-C
enum PSPDFLibraryFTSVersion {}
Swift
@frozen enum FTSVersion : UInt
-
Specifies the priority indexing takes in task scheduling.
See moreDeclaration
Objective-C
enum PSPDFLibraryIndexingPriority {}
Swift
@frozen enum IndexingPriority : UInt
-
Specifies what data is to be indexed to Spotlight.
See moreDeclaration
Objective-C
enum PSPDFLibrarySpotlightIndexingType {}
Swift
@frozen enum SpotlightIndexingType : Int
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(UInt8, PSPDFLinkAnnotationType) { PSPDFLinkAnnotationPage = 0, PSPDFLinkAnnotationWebURL, PSPDFLinkAnnotationDocument, PSPDFLinkAnnotationVideo, /// This is a placeholder for both YouTube and Vimeo PSPDFLinkAnnotationYouTube, PSPDFLinkAnnotationAudio, PSPDFLinkAnnotationImage, PSPDFLinkAnnotationBrowser, /// Any annotation format that is not recognized is custom. (e.g. tel://) PSPDFLinkAnnotationCustom, }
Swift
@frozen enum Kind : UInt8
-
Undocumented
See moreDeclaration
Objective-C
NS_OPTIONS(NSUInteger, PSPDFLogLevelMask) { /// Log nothing. PSPDFLogLevelMaskNothing = 0, /// Logs critical issues, that can break or limit the functionality of the framework. /// Should never be disabled. PSPDFLogLevelMaskCritical = 1 << 0, /// Logs errors. Should never be disabled. PSPDFLogLevelMaskError = 1 << 1, /// Logs issues that are not errors or critical, but log-worthy. PSPDFLogLevelMaskWarning = 1 << 2, /// Logs important operations. PSPDFLogLevelMaskInfo = 1 << 3, /// Will log almost everything and slow down the application flow. PSPDFLogLevelMaskDebug = 1 << 4, /// Might log security related details like signature points. /// Never enable this in release builds unless they are solely for testing. PSPDFLogLevelMaskVerbose = 1 << 5, /// Enables all logging categories. PSPDFLogLevelMaskAll = UINT_MAX, }
Swift
struct LogLevelMask : OptionSet
-
Defines how a PSPDFModel property key should be encoded into an archive.
See moreDeclaration
Objective-C
enum PSPDFModelEncodingBehavior {}
Swift
@frozen enum EncodingBehavior : UInt
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFNamedActionType) { /// No named action. PSPDFNamedActionTypeNone, /// Go to the next page in the document. PSPDFNamedActionTypeNextPage, /// Go to the previous page in the document PSPDFNamedActionTypePreviousPage, /// Go to the first page in the document. PSPDFNamedActionTypeFirstPage, /// Go to the last page in the document. PSPDFNamedActionTypeLastPage, /// Go back using `BackForwardActionList`. Only possible after executing another navigation action. PSPDFNamedActionTypeGoBack, /// Go forward using `BackForwardActionList`. Only possible after executing a GoBack action. PSPDFNamedActionTypeGoForward, PSPDFNamedActionTypeGoToPage, PSPDFNamedActionTypeFind, /// Shows the UI to configure and start printing the document. PSPDFNamedActionTypePrint, /// Shows `OutlineViewController` for the document. PSPDFNamedActionTypeOutline, PSPDFNamedActionTypeSearch, PSPDFNamedActionTypeBrightness, /// Not implemented. PSPDFNamedActionTypeZoomIn, /// Not implemented. PSPDFNamedActionTypeZoomOut, /// Triggers `Document.save()`. PSPDFNamedActionTypeSaveAs, PSPDFNamedActionTypeInfo, PSPDFNamedActionTypeUnknown = NSUIntegerMax, }
Swift
@frozen enum NamedActionType : UInt
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFPageTriggerEvent) { /// O (0) Action to be performed when the page is opened. PSPDFPageTriggerEventOpen, /// C (1) Action to be performed when the page is closed. PSPDFPageTriggerEventClose }
Swift
@frozen enum TriggerEvent : UInt
-
The type of new page that will be added
See moreDeclaration
Objective-C
enum PSPDFNewPageType {}
Swift
@frozen enum NewPageType : Int
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSInteger, PSPDFPolygonAnnotationIntent) { /// No intent. PSPDFPolygonAnnotationIntentNone = 0, /// The annotation is intended to function as a cloud object. PSPDFPolygonAnnotationIntentPolygonCloud, /// The polygon annotation is intended to function as a dimension. (not implemented) PSPDFPolygonAnnotationIntentPolygonDimension }
Swift
@frozen enum Intent : Int
-
Undocumented
See moreDeclaration
Objective-C
NS_ENUM(NSInteger, PSPDFPrivateKeyEncoding) { /// A PKCS#8 encoded private key. PSPDFPrivateKeyEncodingPKCS8, /// A PKCS#1 encoded private key. Both PEM and raw ASN.1 binary format supported. PSPDFPrivateKeyEncodingPKCS1, }
Swift
enum Encoding : Int
-
Specifies how a annotation should be included in the resulting document. See
See moremodifyAnnotationsOfType:change:
andmodifyAnnotations:change:error:
.Declaration
Objective-C
enum PSPDFAnnotationChange {}
Swift
@frozen enum AnnotationChange : Int
-
Specifies if the item (image) should be located in the foreground or background
See moreDeclaration
Objective-C
enum PSPDFItemZPosition {}
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFReachability) { PSPDFReachabilityUnknown, PSPDFReachabilityUnreachable, PSPDFReachabilityWiFi, /// iOS only PSPDFReachabilityWWAN, }
Swift
@frozen enum ReachabilityStatus : UInt
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFRenderType) { /// Renders a single page. PSPDFRenderTypePage, /// Exports or transforms a document PSPDFRenderTypeProcessor, /// Useful to apply settings to all render types. PSPDFRenderTypeAll = NSUIntegerMax }
Swift
@frozen enum RenderType : UInt
-
Undocumented
See moreDeclaration
Objective-C
NS_OPTIONS(NSUInteger, PSPDFRenderFilter) { /// If set, a grayscale filter will be applied. PSPDFRenderFilterGrayscale = 1 << 0, /// If set and `invertRenderColor` is `true`, the inverted mode (a.k.a. night mode) will be rendered color correct. PSPDFRenderFilterColorCorrectInverted = 1 << 1, /// If set, a sepia filter will be applied. PSPDFRenderFilterSepia = 1 << 2 }
Swift
struct RenderFilter : OptionSet
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFRenderQueuePriority) { /// Used for unspecified renderings with the lowest priority. PSPDFRenderQueuePriorityUnspecified = 0, /// Used for renderings that the user is not aware of, such as building a cache in the background. PSPDFRenderQueuePriorityBackground = 100, /// Used for renderings that the user might see but that are not necessary to complete, such as generating thumbnails that are not necessary for the user to properly work with a document but. PSPDFRenderQueuePriorityUtility = 200, /// Used for renderings that the user requested but that are not required for the user to keep using a document. PSPDFRenderQueuePriorityUserInitiated = 300, /// Used for renderings that the user requested and that are currently blocking their workflow. PSPDFRenderQueuePriorityUserInteractive = 400, }
Swift
@frozen enum Priority : UInt
-
The render request cache policy controls if and how the request, once scheduled, access the cache.
See moreDeclaration
Objective-C
enum PSPDFRenderRequestCachePolicy {}
Swift
@frozen enum CachePolicy : Int
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSInteger, PSPDFRenditionActionType) { PSPDFRenditionActionTypeUnknown = -1, PSPDFRenditionActionTypePlayStop, PSPDFRenditionActionTypeStop, PSPDFRenditionActionTypePause, PSPDFRenditionActionTypeResume, PSPDFRenditionActionTypePlay, }
Swift
@frozen enum Kind : Int
-
Flags for reset-form actions, matching bit positions in the PDF specification.
See moreDeclaration
Objective-C
enum PSPDFResetFormActionFlag {}
Swift
struct Flag : OptionSet
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFMediaScreenWindowType) { PSPDFMediaScreenWindowTypeFloating, PSPDFMediaScreenWindowTypeFullscreen, PSPDFMediaScreenWindowTypeHidden, /// Default value PSPDFMediaScreenWindowTypeUseAnnotationRectangle, }
Swift
@frozen enum MediaScreenWindowType : UInt
-
Configures the style of a digital signature.
See moreDeclaration
Objective-C
enum PSPDFSignatureAppearanceMode {}
Swift
@frozen enum Mode : UInt
-
The different kinds of input methods we support for creating a handwritten signature.
See moreDeclaration
Objective-C
enum PSPDFDrawInputMethod {}
Swift
@frozen enum DrawInputMethod : UInt
-
Defines the possible biometric properties to store in a digital signature.
See moreDeclaration
Objective-C
enum PSPDFSignatureBiometricPropertiesOption {}
Swift
struct Option : OptionSet
-
The supported encryption algorithms that can be used when signing a document.
See moreDeclaration
Objective-C
enum PSPDFSignatureEncryptionAlgorithm {}
Swift
@frozen enum PDFSignatureEncryptionAlgorithm : UInt
-
A hash algorithm or hash function is a function that maps data of arbitrary size to data of a fixed size. In the context of PDF, this arbitrary data may represent a part of a document. The output of a hash function is always identical if the input data is the same. This fact can be used to check if a document has been altered intentionally or accidentally.
PSPDFKit supports several hash functions. This list is not a complete list of every hash algorithm that is available. Some hash algorithms are not supported yet by the PDF specification for their use in digital signatures.
See moreDeclaration
Objective-C
enum PSPDFSignatureHashAlgorithm {}
Swift
@frozen enum PDFSignatureHashAlgorithm : UInt
-
Severity of a signature validation problem
See moreDeclaration
Objective-C
enum PSPDFSignatureStatusSeverity {}
Swift
@frozen enum Severity : Int
-
Integrity status of a signature field.
See moreDeclaration
Objective-C
enum PSPDFSignatureIntegrityStatus {}
Swift
@frozen enum Integrity : Int
-
Undocumented
See moreDeclaration
Objective-C
NS_ERROR_ENUM(PSPDFSignerErrorDomain, PSPDFSignerErrorCode) { /// No error during the signing process. PSPDFSignerErrorNone = noErr, /// A signature form element was not found in the document. PSPDFSignerErrorNoFormElementSet = 0x1, /// An error occurred while generating the PKCS#7 structure. PSPDFSignerErrorCannotNotCreatePKCS7 = 0x100, /// A problem occurred while adding the signature to the PKCS#7. PSPDFSignerErrorCannotNotAddSignatureToPKCS7 = 0x101, /// A problem occurred while initializing the PKCS#7 structure. PSPDFSignerErrorCannotNotInitPKCS7 = 0x102, /// An error occurred while generating the PKCS#7 signature. PSPDFSignerErrorCannotGeneratePKCS7Signature = 0x103, /// A problem occurred while writing the PKCS#7 signature to the document. PSPDFSignerErrorCannotWritePKCS7Signature = 0x104, /// The document was signed correctly but couldn't be verified afterwards. PSPDFSignerErrorCannotVerifySignature = 0x105, /// The signed document could not be created. Check that you have the necessary permissions for the destination folder. PSPDFSignerErrorCannotSaveToDestination = 0x106, /// The sub-filter type specified to create the signature is not supported. PSPDFSignerErrorUnsupportedSubfilterType = 0x107, /// Cannot find the signature, either in a new or existing document. PSPDFSignerErrorCannotFindSignature = 0x108, /// The attributes could not be signed. PSPDFSignerErrorCannotSignAttributes = 0x109, /// The form element could not be signed. PSPDFSignerErrorCannotSignFormElement = 0x110, /// The form element is already digitally signed, so it does not make sense to digitally sign it again. PSPDFSignerErrorCannotSignAlreadySigned = 0x111, /// The byte range of the document could not be hashed. PSPDFSignerErrorCouldNotHashDocument = 0x112, }
Swift
typealias PDFSignerError.Code._ErrorType = PDFSignerError
-
Sound annotation recording and playback states.
See moreDeclaration
Objective-C
enum PSPDFSoundAnnotationState {}
Swift
@frozen enum State : Int
-
Flags for submit-form actions, matching bit positions in the PDF specification.
See moreDeclaration
Objective-C
enum PSPDFSubmitFormActionFlag {}
Swift
struct Flag : OptionSet
-
Form field flags specific to text fields, matching bit positions in the PDF specification.
See moreDeclaration
Objective-C
enum PSPDFTextFieldFlag {}
Swift
struct TextFieldFlag : OptionSet
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFTextInputFormat) { PSPDFTextInputFormatNormal, PSPDFTextInputFormatNumber, PSPDFTextInputFormatDate, PSPDFTextInputFormatTime, }
Swift
@frozen enum TextInputFormat : UInt
-
Undocumented
See moreDeclaration
Objective-C
NS_CLOSED_ENUM(NSUInteger, PSPDFUndoCoalescing) { /// Does not coalesce events with the same key at all but rather creates one new undo event for every single change. PSPDFUndoCoalescingNone, /// Coalesces events with the same key by time. Assuming that a key changes a number of times over a /// short period of time, only the initial value will be recorded. PSPDFUndoCoalescingTimed, /// Puts all subsequent changes to one key into the same group. This means that constant changes /// of the same value will result in exactly one event, which restores the property to its initial value. PSPDFUndoCoalescingAll }
Swift
@frozen enum UndoCoalescingg : UInt