VintaSoft Imaging .NET SDK v8.6
Vintasoft.Imaging.Pdf.Tree Namespace / PdfPage Class / RemoveAnnotations Method
The array of rectangles, in PDF page space (user units).
Example



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    RemoveAnnotations Method
    In This Topic
    Removes annotations that intersect with specified rectangles on PDF page.
    Syntax
    'Declaration
     
    Public Sub RemoveAnnotations( _
       ByVal ParamArray rects() As RectangleF _
    ) 
    public void RemoveAnnotations( 
       params RectangleF[] rects
    )
    public: void RemoveAnnotations( 
       params RectangleF[]* rects
    ) 
    public:
    void RemoveAnnotations( 
       ... array<RectangleF>^ rects
    ) 

    Parameters

    rects
    The array of rectangles, in PDF page space (user units).
    Remarks
    Important! - PDF document must be packed (Vintasoft.Imaging.Pdf.PdfDocument.Pack) after content removal otherwise the removed content can be restored.
    Example
    This example shows how to remove annotations in specified rectangle of PDF page.
    Public Shared Sub TestRemoveAnnotationsOnAllPages(inputPdfFilename As String, outputPdfFilename As String)
        ' open document
        Using document As New Vintasoft.Imaging.Pdf.PdfDocument(inputPdfFilename)
            ' for all pages
            For Each page As Vintasoft.Imaging.Pdf.Tree.PdfPage In document.Pages
                Dim rect As System.Drawing.RectangleF = page.MediaBox
                rect.Inflate(New System.Drawing.SizeF(-rect.Width / 4, -rect.Height / 4))
                ' remove annotations that intersect with specified rectangle on PDF page
                page.RemoveAnnotations(rect)
            Next
            ' pack document
            If inputPdfFilename = outputPdfFilename Then
                document.Pack()
            Else
                document.Pack(outputPdfFilename)
            End If
        End Using
    End Sub
    public static void TestRemoveAnnotationsOnAllPages(string inputPdfFilename, string outputPdfFilename)
    {
        // open document
        using (Vintasoft.Imaging.Pdf.PdfDocument document = new Vintasoft.Imaging.Pdf.PdfDocument(inputPdfFilename))
        {
            // for all pages
            foreach (Vintasoft.Imaging.Pdf.Tree.PdfPage page in document.Pages)
            {
                System.Drawing.RectangleF rect = page.MediaBox;
                rect.Inflate(new System.Drawing.SizeF(-rect.Width / 4, -rect.Height / 4));
                // remove annotations that intersect with specified rectangle on PDF page
                page.RemoveAnnotations(rect);
            }
            // pack document
            if (inputPdfFilename == outputPdfFilename)
                document.Pack();
            else
                document.Pack(outputPdfFilename);
        }
    }
    Requirements

    Target Platforms: Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows Server 2012, Windows Server 2008, Windows Server 2003

    See Also