Class ChangeTrackingModes

Determines if hashes are generated of all objects upon opening a document.

Very slow for large documents.

Must be enabled for multiple signatures or revisions.

Should be disabled if it corrupts documents signed by 3rd parties.

Inheritance

System.Object

ChangeTrackingModes

Namespace: IronPdf.Rendering

Assembly: IronPdf.dll

Syntax

public sealed class ChangeTrackingModes : Enum

The ChangeTrackingModes enumeration in IronPDF controls whether object hashes are generated when a document is opened, which underpins reliable revision history and incremental save workflows.

Part of the IronPdf.Rendering namespace, declared values are EnableChangeTracking, DisableChangeTracking, and AutoChangeTracking (3 total). The mode is passed to PdfDocument constructors that accept a TrackChanges parameter alongside SaveAsRevision.

See revision history for end-to-end C# usage.

Fields

AutoChangeTracking

Enable change tracking if pre-existing signatures are found

Declaration

public const ChangeTrackingModes AutoChangeTracking

Field Value

Type	Description
ChangeTrackingModes

DisableChangeTracking

Force disable change tracking

Declaration

public const ChangeTrackingModes DisableChangeTracking

Field Value

Type	Description
ChangeTrackingModes

Remarks

Useful if IronPdf is corrupting signed documents

EnableChangeTracking

Force enable change tracking

Declaration

public const ChangeTrackingModes EnableChangeTracking

Field Value

Type	Description
ChangeTrackingModes

Remarks

Useful for manually enabling revision feature

value__

Declaration

public int value__

Field Value

Type	Description
System.Int32