Convert Topaz Sigweb sigstring to Base64

Question

I am working on a mobile application(ionic) where there is a field for user\'s signature. Users needs to sign with their finger in canvas.

Now this application has web v

Answer 1

The SigWeb SDK provides a method to get the signature string in a image format. Using that image, its possible to generate the target Base64 string. Here's a vb.net based implementation.

 Dim sigImage As System.Drawing.Image
 Dim sigObj As Topaz.SigPlusNET
 sigObj = New Topaz.SigPlusNET
 sigObj.SetSigCompressionMode(1)

 sigObj.SetSigString(sigWebSignatureString)
 sigObj.SetImageFileFormat(2)
 sigObj.SetImageXSize(100)
 sigObj.SetImageYSize(80)
 sigObj.SetImagePenWidth(1)
 sigObj.SetJustifyMode(5)
 sigImage = sigObj.GetSigImage()
 Using ms As New MemoryStream()
 System.Drawing.Image.Save(ms, Format)
      Dim imageBytes As Byte() = ms.ToArray()
      Dim base64String As String = Convert.ToBase64String(imageBytes)
 End Using