Android Question Conflict between PdfDocument and PDFium.

Private Sub imgpdf
    'A4 Size
    Dim w As Int = 595
    Dim h As Int = 842
   
    Dim pdf As PdfDocument
    pdf.Initialize
    pdf.StartPage(w, h)
   
    Dim Bitmap1 As Bitmap
    Bitmap1.Initialize(Main.FileDir, Main.FileName)
    Dim SrcRect As Rect
    SrcRect.Initialize(0, 0, Bitmap1.Width, Bitmap1.Height)
    Dim DestRect As Rect
    'Dim left As Double
    'left = w-Bitmap1.Width
    DestRect.Initialize(0, 0, Bitmap1.Width, h)
    pdf.Canvas.DrawBitmap(Bitmap1, SrcRect, DestRect)
    pdf.FinishPage

    Dim out As OutputStream = File.OpenOutput(Main.FileDir, Main.FileName, False)
    pdf.WriteToStream(out)
    out.Close
    pdf.Close
    Dim in As InputStream = File.OpenInput(Main.FileDir, Main.FileName)
    Wait For (FileHandler1.SaveAs(in, "application/pdf", "YourFile.pdf")) Complete (Success As Boolean)
    If Success Then
        toast.Show("File saved successfully")
    Else
        toast.Show("File not saved")
    End If
End Sub