AddEmbeddedImageAnnotFromBase64 Method (AnnotationManager)

In This Topic

Adds a new GdPicture/XMP embedded image annotation on the selected page of the document currently handled by this AnnotationManager object according to the parameters you have specified. This annotation embeds the image from a bitmap file stored in base64 string on the page within the defined rectangle area.

The type of the newly added annotation object is GdPictureAnnotationType.AnnotationTypeEmbeddedImage. You can change the annotation properties directly using the GdPicture14.Annotations.AnnotationEmbeddedImage class right after the successful creation of the annotation object.

Be aware that annotations are always treated relative to the currently selected page.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function AddEmbeddedImageAnnotFromBase64( _
   ByVal Base64Image As String, _
   ByVal Left As Single, _
   ByVal Top As Single, _
   ByVal Width As Single, _
   ByVal Height As Single _
) As AnnotationEmbeddedImage

public AnnotationEmbeddedImage AddEmbeddedImageAnnotFromBase64( 
   string Base64Image,
   float Left,
   float Top,
   float Width,
   float Height
)

public function AddEmbeddedImageAnnotFromBase64( 
    Base64Image: String;
    Left: Single;
    Top: Single;
    Width: Single;
    Height: Single
): AnnotationEmbeddedImage;

public function AddEmbeddedImageAnnotFromBase64( 
   Base64Image : String,
   Left : float,
   Top : float,
   Width : float,
   Height : float
) : AnnotationEmbeddedImage;

public: AnnotationEmbeddedImage* AddEmbeddedImageAnnotFromBase64( 
   string* Base64Image,
   float Left,
   float Top,
   float Width,
   float Height
)

public:
AnnotationEmbeddedImage^ AddEmbeddedImageAnnotFromBase64( 
   String^ Base64Image,
   float Left,
   float Top,
   float Width,
   float Height
)

Parameters

Base64Image: A base64 encoded string containing the data of the image to render as an annotation.
Left: The horizontal (X) coordinate of the top left point, in inches, where the annotation bounding box is to be located.
Top: The vertical (Y) coordinate of the top left point, in inches, where the annotation bounding box is to be located.
Width: The width of the annotation bounding box, in inches.
Height: The height of the annotation bounding box, in inches.

Return Value

A GdPicture/XMP AnnotationEmbeddedImage object. The newly added GdPicture/XMP embedded image annotation.

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.

You can regularly apply the AnnotationManager.GetStat method to determine if this method has been successful.

Example

How to add an embedded image annotation from the string on the currently selected page of the handled document.

VB.NET
C#

Using annotMgr As AnnotationManager = New AnnotationManager()
    'We assume you have an image resource in a Base64 string here.
    Dim image As String = "Your image in Base64 encoded string"
    If (annotMgr.InitFromFile("source.pdf") = GdPictureStatus.OK) AndAlso
       (annotMgr.SelectPage(1) = GdPictureStatus.OK) Then
        Dim annot As GdPicture14.Annotations.AnnotationEmbeddedImage = annotMgr.AddEmbeddedImageAnnotFromBase64(image, 0.5F, 0.5F, 2, 3)
        If (annotMgr.GetStat() = GdPictureStatus.OK) AndAlso (annot IsNot Nothing) Then
            annot.Author = "GdPicture"
            annot.Opacity = 0.8F
            If annotMgr.SaveAnnotationsToPage() = GdPictureStatus.OK Then annotMgr.SaveDocumentToPDF("dest.pdf")
        End If
        annot.Dispose()
    End If
    If annotMgr.GetStat() = GdPictureStatus.OK Then
        MessageBox.Show("Done!", "AnnotationManager.AddEmbeddedImageAnnotFromBase64")
    Else
        MessageBox.Show("Error!   Status: " + annotMgr.GetStat().ToString(), "AnnotationManager.AddEmbeddedImageAnnotFromBase64")
    End If
    annotMgr.Close()
End Using

using (AnnotationManager annotMgr = new AnnotationManager())
{
    //We assume you have an image resource in a Base64 string here.
    string image = "Your image in Base64 encoded string";
    if ((annotMgr.InitFromFile("source.pdf") == GdPictureStatus.OK) &&
        (annotMgr.SelectPage(1) == GdPictureStatus.OK))
    {
        GdPicture14.Annotations.AnnotationEmbeddedImage annot = annotMgr.AddEmbeddedImageAnnotFromBase64(image, 0.5f, 0.5f, 2, 3);
        if ((annotMgr.GetStat() == GdPictureStatus.OK) && (annot != null))
        {
            annot.Author = "GdPicture";
            annot.Opacity = 0.8f;
            if (annotMgr.SaveAnnotationsToPage() == GdPictureStatus.OK)
                annotMgr.SaveDocumentToPDF("dest.pdf");
        }
        annot.Dispose();
    }
    if (annotMgr.GetStat() == GdPictureStatus.OK)
        MessageBox.Show("Done!", "AnnotationManager.AddEmbeddedImageAnnotFromBase64");
    else
        MessageBox.Show("Error!   Status: " + annotMgr.GetStat().ToString(), "AnnotationManager.AddEmbeddedImageAnnotFromBase64");
    annotMgr.Close();
}

Reference

AnnotationManager Class
AnnotationManager Members
SelectPage Method
SaveAnnotationsToPage Method
GetAnnotationCount Method
GetAnnotationIdx Method
GetAnnotationType Method
DeleteAnnotation Method