Imports PdfSharp.Pdf
Imports PdfSharp.Pdf.Annotations
Imports PdfSharp.Pdf.IO
Imports PdfSharp.Drawing
Public Class ClassAnnotation
    Public Shared Function Annotate_PDF(title As String, content As String, page As Integer, fromGui As Boolean, Optional ycorrect As Integer = 0, Optional sizecorrect As Integer = 0)
        If CURRENT_DOC_PATH.Length > 0 Then
            Try
                Dim doc As PdfDocument = PdfReader.Open(CURRENT_DOC_PATH, PdfDocumentOpenMode.Modify)
                Dim firstPage As PdfPage = doc.Pages(page)

                Dim gfx As XGraphics = XGraphics.FromPdfPage(firstPage)
                Dim rect As XRect = gfx.Transformer.WorldToDefaultPage(New XRect(New XPoint(30, 60 + ycorrect), New XSize(60 + sizecorrect, 40 + sizecorrect)))

                Dim annot As PdfTextAnnotation = New PdfTextAnnotation

                annot.Title = title
                'annot.Subject = txtsubject.Text
                annot.Contents = content
                annot.Rectangle = New PdfRectangle(rect)


                firstPage.Annotations.Add(annot)
                doc.Save(CURRENT_DOC_PATH)
                Return True
            Catch ex As Exception
                If fromGui = True Then
                    MsgBox(ex.Message, MsgBoxStyle.Critical, "Error in Annotate pdf:")
                End If
                LOGGER.Error(ex)
                LOGGER.Info("Unexpected error in Annotate pdf: " & ex.Message, False)
                Return False
            End Try
        End If


    End Function
End Class