Im trying to retrieve the url information of a signature field but I got some problems:

Sometimes I capture the signature in native app and sometimes I capture in the browser way.

In the On Sucess I have this part of code

1. imagelnk = input.SignatureField;

The problem is that when I submit the form in the native app this value takes in the On Sucess  1448464101903_Signature.jpg

If I check the Url of the image signature is a png file.

I try replacing the string extension to match the png file, the problem is that the number always change when the record is stored and different in the On Sucess.

Best Regards,