Convert SVG or Base30 to image file - vb.net

Question

I'm trying to convert an SVG file to any format of image file.
I'm creating SVG file from base30 value.
Public Sub SaveSignature()
Dim B30 As New Base30Converter
Dim Img = B30.GetData("aQ4895d6d7j5h94840Z39baa6bfb6430Y4538d6a49c59db8863003240Z4374b7ek7j4a33Y255e8j5d6Z52Y3b2428385e9n1vd1Bfq6a4Z4Y3949456Z1e91wi2B2N1u2Eh1H9bY5j81ye1w1u8e5724983329d8pe1Ai1Nf1V1Uft9d5_7WZ266594c4g7gc36452542000Y2648a67334524112100Z1235766Y64Z9ah593420Y75g7d483401000Z34Y133Z332Y7e29262300Z43a3652Y26252556400Z2ig6h2200473720Y2263542006736424241000Z826010")
Dim svg = SVGConverter.ToSVG(Img)
Dim sw As New System.IO.StreamWriter("D:\Sign.svg", False)
sw.Write(svg)
sw.Close()
Dim bmp As Bitmap = renderFile("D:\Sign.svg")
Dim g As Graphics
g = Graphics.FromImage(bmp)
Using g
g.Clear(Color.White)
g.DrawImageUnscaled(bmp, 0, 0)
End Using
bmp.Save("D:\Sign.bmp", System.Drawing.Imaging.ImageFormat.Bmp)
bmp.Save("D:\Sign.jpg", System.Drawing.Imaging.ImageFormat.Jpeg)
bmp.Save("D:\Sign.emf", System.Drawing.Imaging.ImageFormat.Emf)
End Sub
Public Function renderFile(filename As String) As Bitmap
Dim displaySize As System.Drawing.Size
displaySize.Width = 300
displaySize.Height = 200
Dim svgDoc As SvgDocument = SvgDocument.Open(filename)
Dim svgSize = svgDoc.GetDimensions()
If svgSize.Width = 0 Then
Throw New Exception("SVG does not have size specified. Cannot work with it.")
End If
Dim displayProportion = (displaySize.Height * 1.0F) / displaySize.Width
Dim svgProportion = svgSize.Height / svgSize.Width
Dim scalingFactor As Single = 0.0F
Dim padding As Integer = 10
If displayProportion > svgProportion Then
scalingFactor = ((displaySize.Width - padding * 2) * 1.0F) / svgSize.Width
Else
scalingFactor = ((displaySize.Height - padding * 2) * 1.0F) / svgSize.Height
End If
If scalingFactor < 0 Then
Throw New Exception("Viewing area is too small to render the image")
End If
Dim centeringX As Integer = Convert.ToInt16((displaySize.Width - (padding + CInt(svgDoc.Width) * scalingFactor)) / 2)
Dim centeringY As Integer = Convert.ToInt16((displaySize.Height - (padding + CInt(svgDoc.Height) * scalingFactor)) / 2)
svgDoc.Transforms = New SvgTransformCollection()
svgDoc.Transforms.Add(New SvgTranslate(padding + centeringX, padding + centeringY))
svgDoc.Transforms.Add(New SvgScale(scalingFactor))
svgDoc.Width = New SvgUnit(svgDoc.Width.Type, displaySize.Width)
svgDoc.Height = New SvgUnit(svgDoc.Height.Type, displaySize.Height)
Return svgDoc.Draw()
End Function
After all these process the image file left with empty file.
The base30 value I'm getting from a signature panel in asp application.