Example





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GdPicture14 Namespace / AnnotationManager Class / SaveAnnotationsToXMPBase64 Method

SaveAnnotationsToXMPBase64 Method (AnnotationManager)

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Saves the GdPicture/XMP annotation part of the selected page of the document currently handled by this AnnotationManager object to a Base64 encoded string.

Be aware that this method only handles GdPicture/XMP annotations. Likewise, annotations are always treated relative to the selected page.

Syntax
'Declaration

 


Public Function SaveAnnotationsToXMPBase64() As String
public string SaveAnnotationsToXMPBase64()
public function SaveAnnotationsToXMPBase64(): String; 
public function SaveAnnotationsToXMPBase64() : String;
public: string* SaveAnnotationsToXMPBase64(); 
public:

String^ SaveAnnotationsToXMPBase64();

Return Value

A Base64 encoded string containing the annotations data of the selected page in the handled document.
Remarks

Please ensure that you have selected the proper page before starting any annotation related action with the handled document. Annotations are always treated relative to the currently selected page.

This method requires the Annotations component to run.

Example
How to transfer GdPicture/XMP annotations from one JPEG file to another using a Base64 encoded string. 
Dim annotationManager As AnnotationManager = New AnnotationManager()

If (annotationManager.InitFromFile("image1.jpeg") = GdPictureStatus.OK) AndAlso

   (annotationManager.PageCount > 0) AndAlso (annotationManager.SelectPage(1) = GdPictureStatus.OK) Then

    Dim annotBase As String = annotationManager.SaveAnnotationsToXMPBase64()

    If annotationManager.GetStat() = GdPictureStatus.OK Then

        annotationManager.Close()

        If (annotationManager.InitFromFile("image2.jpeg") = GdPictureStatus.OK) AndAlso

           (annotationManager.PageCount > 0) AndAlso (annotationManager.SelectPage(1) = GdPictureStatus.OK) AndAlso

           (annotationManager.LoadAnnotationsFromXMPBase64(annotBase) = GdPictureStatus.OK) Then

            If annotationManager.SaveDocumentToJPEG("image2_updated.jpeg", 75) = GdPictureStatus.OK Then

                MessageBox.Show("Done!", "AnnotationManager.SaveAnnotationsToXMPBase64")

            End If

            annotationManager.Close()

        Else

            MessageBox.Show("Error!   Status: " + annotationManager.GetStat().ToString(), "AnnotationManager.SaveAnnotationsToXMPBase64")

        End If

    Else

        MessageBox.Show("Error!   Status: " + annotationManager.GetStat().ToString(), "AnnotationManager.SaveAnnotationsToXMPBase64")

    End If

Else

    MessageBox.Show("Error!   Status: " + annotationManager.GetStat().ToString(), "AnnotationManager.SaveAnnotationsToXMPBase64")

End If

annotationManager.Dispose()
AnnotationManager annotationManager = new AnnotationManager();

if ((annotationManager.InitFromFile("image1.jpeg") == GdPictureStatus.OK) &&

    (annotationManager.PageCount > 0) && (annotationManager.SelectPage(1) == GdPictureStatus.OK))

{

    string annotBase = annotationManager.SaveAnnotationsToXMPBase64();

    if (annotationManager.GetStat() == GdPictureStatus.OK)

    {

        annotationManager.Close();

        if ((annotationManager.InitFromFile("image2.jpeg") == GdPictureStatus.OK) &&

            (annotationManager.PageCount > 0) && (annotationManager.SelectPage(1) == GdPictureStatus.OK) &&

            (annotationManager.LoadAnnotationsFromXMPBase64(annotBase) == GdPictureStatus.OK))

        {

            if (annotationManager.SaveDocumentToJPEG("image2_updated.jpeg", 75) == GdPictureStatus.OK)

                MessageBox.Show("Done!", "AnnotationManager.SaveAnnotationsToXMPBase64");

            annotationManager.Close();

        }

        else MessageBox.Show("Error!   Status: " + annotationManager.GetStat().ToString(), "AnnotationManager.SaveAnnotationsToXMPBase64");

    }

    else MessageBox.Show("Error!   Status: " + annotationManager.GetStat().ToString(), "AnnotationManager.SaveAnnotationsToXMPBase64");

}

else MessageBox.Show("Error!   Status: " + annotationManager.GetStat().ToString(), "AnnotationManager.SaveAnnotationsToXMPBase64");

annotationManager.Dispose();
See Also

Reference

AnnotationManager Class
AnnotationManager Members
SaveAnnotationsToXMPEx(String) Method
GetAnnotationCount Method
LoadAnnotationsFromXMP(String) Method
SaveAnnotationsToPage Method
BurnAnnotationsToPage(Boolean) Method