PdfLoadedAnnotation Class

The class provides methods and properties to handle the loaded annotations from the existing PDF document.

Inheritance
System.Object
PdfAnnotation
PdfLoadedAnnotation
PdfLoadedStyledAnnotation
Implements
System.ComponentModel.INotifyPropertyChanged
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Syncfusion.Pdf.Interactive
Assembly: Syncfusion.Pdf.Base.dll
Syntax
public abstract class PdfLoadedAnnotation : PdfAnnotation, IPdfWrapper, INotifyPropertyChanged
Remarks

Please refer UG documentation link for PdfSoundAnnotation from this link https://help.syncfusion.com/file-formats/pdf/working-with-annotations#sound-annotation

Examples
//Load an existing document.
PdfLoadedDocument document = new PdfLoadedDocument(@"..\..\Annotations.pdf");
//Get the annotation from loaded document.
PdfLoadedSoundAnnotation soundAnnotation = document.Pages[1].Annotations[5] as PdfLoadedSoundAnnotation;
//Get the page.
PdfLoadedPage page =soundAnnotation.Page;
//Save the document.
document.Save("SoundAnnotation.pdf");
document.Close(true);
'Load an existing document.
Dim document As New PdfLoadedDocument("..\..\Annotations.pdf")
'Gets the annotation from loaded document.
Dim soundAnnotation As PdfLoadedSoundAnnotation = document.Pages(1).Annotations(5) as PdfLoadedSoundAnnotation
'Gets the page.
Dim page As PdfLoadedPage=soundAnnotation.Page
'Save the document.
document.Save("SoundAnnotation.pdf")
document.Close(True)

Fields

ObjectID

Represents the Form field identifier

Declaration
public int ObjectID
Field Value
Type
System.Int32

Properties

CreationDate

Gets the creation date.

Declaration
public DateTime CreationDate { get; }
Property Value
Type Description
System.DateTime

The creation date.
Examples
//Load an existing document.
PdfLoadedDocument document = new PdfLoadedDocument(@"..\..\Annotations.pdf");
//Gets the annotation from loaded document.
PdfLoadedAnnotation loadedAnnotation = document.Pages[0].Annotations[0] as PdfLoadedAnnotation;
//Gets the creation date.
DateTime creationDate = loadedAnnotation.CreationDate;
//Save the document.
document.Save("output.pdf");
document.Close(true);
'Load an existing document.
Dim document As New PdfLoadedDocument("..\..\Annotations.pdf")
'Gets the annotation from loaded document.
Dim loadedAnnotation As PdfLoadedAnnotation = TryCast(document.Pages(0).Annotations(0), PdfLoadedAnnotation)
'Gets the creation date.
DateTime creationDate = loadedAnnotation.CreationDate;
'Save the document.
document.Save("output.pdf")
document.Close(True)

Page

Gets and sets the PdfLoadedPage where the annotation is present.

Declaration
public PdfLoadedPage Page { get; set; }
Property Value
Type Description
PdfLoadedPage

The PdfLoadedPage of the existing PDF document
Examples
//Load an existing document.
PdfLoadedDocument document = new PdfLoadedDocument(@"..\..\Annotations.pdf");
//Get the annotation from loaded document.
PdfLoadedSoundAnnotation soundAnnotation = document.Pages[1].Annotations[5] as PdfLoadedSoundAnnotation;
//Get the page.
PdfLoadedPage page =soundAnnotation.Page;
//Save the document.
document.Save("SoundAnnotation.pdf");
document.Close(true);
'Load an existing document.
Dim document As New PdfLoadedDocument("..\..\Annotations.pdf")
'Gets the annotation from loaded document.
Dim soundAnnotation As PdfLoadedSoundAnnotation = document.Pages(1).Annotations(5) as PdfLoadedSoundAnnotation
'Gets the page.
Dim page As PdfLoadedPage=soundAnnotation.Page
'Save the document.
document.Save("SoundAnnotation.pdf")
document.Close(True)

Type

Gets the annotation type.

Declaration
public PdfLoadedAnnotationType Type { get; }
Property Value
Type Description
PdfLoadedAnnotationType

The annotation type.
Examples
//Load an existing document.
PdfLoadedDocument document = new PdfLoadedDocument(@"..\..\Annotations.pdf");
//Gets the annotation from loaded document.
PdfLoadedAnnotation loadedAnnotation = document.Pages[0].Annotations[0] as PdfLoadedAnnotation;
//Gets the annotation type.
PdfLoadedAnnotationType annotationType = loadedAnnotation.Type;
//Save the document.
document.Save("output.pdf");
document.Close(true);
'Load an existing document.
Dim document As New PdfLoadedDocument("..\..\Annotations.pdf")
'Gets the annotation from loaded document.
Dim loadedAnnotation As PdfLoadedAnnotation = TryCast(document.Pages(0).Annotations(0), PdfLoadedAnnotation)
'Gets the annotation type.
PdfLoadedAnnotationType annotationType = loadedAnnotation.Type
'Save the document.
document.Save("output.pdf")
document.Close(True)

Methods

GetValues(String)

Gets the values associated with the specified key.

Declaration
public List<string> GetValues(string name)
Parameters
Type Name Description
System.String name
Returns
Type
System.Collections.Generic.List<System.String>

SetText(String)

Sets the name of the annotation

Declaration
public void SetText(string text)
Parameters
Type Name Description
System.String text
Examples
//Load an existing document.
PdfLoadedDocument document = new PdfLoadedDocument(@"..\..\Annotations.pdf");
//Gets the annotation from loaded document.
PdfLoadedSoundAnnotation soundAnnotation = document.Pages[1].Annotations[5] as PdfLoadedSoundAnnotation;
//Sets the annotation text.
soundAnnotation.SetText("Sound Annotation");
//Save the document.
document.Save("SoundAnnotation.pdf");
document.Close(true);
'Load an existing document.
Dim document As New PdfLoadedDocument("..\..\Annotations.pdf")
'Gets the annotation from loaded document.
Dim soundAnnotation As PdfLoadedSoundAnnotation = document.Pages(1).Annotations(5) as PdfLoadedSoundAnnotation
'Sets the annotation text.
soundAnnotation.SetText("Sound Annotation")
'Save the document.
document.Save("SoundAnnotation.pdf")
document.Close(True)

SetValues(String, String)

Set the values associated with the specified key.

Declaration
public void SetValues(string key, string value)
Parameters
Type Name Description
System.String key
System.String value
Examples
PdfLoadedDocument ldoc = new PdfLoadedDocument("WF_48044_Annotation.pdf");
PdfLoadedPage lpage = ldoc.Pages[0] as PdfLoadedPage;
PdfLoadedAnnotationCollection annots = lpage.Annotations;
PdfLoadedCircleAnnotation Icircle = annots[64] as PdfLoadedCircleAnnotation;
//Get the author
string author = Icircle.Author;
PdfLoadedPopupAnnotationCollection collection = Icircle.ReviewHistory;
PdfLoadedPopupAnnotationCollection collectionComments = Icircle.Comments;
PdfLoadedPopupAnnotation annotation = collection[1] as PdfLoadedPopupAnnotation;
//Set Unknown state and model
annotation.SetValues("State", "StateModel");
annotation.SetValues("StateModel", "CustomState");
ldoc.Save("result.pdf");
Dim ldoc As PdfLoadedDocument = New PdfLoadedDocument("WF_48044_Annotation.pdf")
Dim lpage As PdfLoadedPage = CType(ldoc.Pages(0), PdfLoadedPage)
Dim annots As PdfLoadedAnnotationCollection = lpage.Annotations
Dim Icircle As PdfLoadedCircleAnnotation = CType(annots(64), PdfLoadedCircleAnnotation)
Dim author As String = Icircle.Author
Dim collection As PdfLoadedPopupAnnotationCollection = Icircle.ReviewHistory
Dim collectionComments As PdfLoadedPopupAnnotationCollection = Icircle.Comments
Dim annotation As PdfLoadedPopupAnnotation = CType(collection(1), PdfLoadedPopupAnnotation)
'Set Unknown state and model
annotation.SetValues("State", "StateModel")
annotation.SetValues("StateModel", "CustomState")
ldoc.Save("result.pdf")

Implements

System.ComponentModel.INotifyPropertyChanged

See Also