Question

In my method I get a parameter which is string which represents a blob file. The string is enormous, here are it beginnings:

"iVBORw0KGgoAAAANSUhEUgAAAHgAAAA3CAMAAADwtH5ZAAADAFBMVEX//////P///v/+///3/f3//f+zoJL3///15/SKWy
fZ3NPw///w/v78+/n++vH79vP9/f35/fz1+/n0+/T/+vj/+v3p7Ne6MgK8UgDKYBTTSxfXTTC+dWaHMBT///v4///49vf9
//7+/v77///8////9/zo2L+zTAHEZgazSQ/MgAjIqEWqUB7KdhbboELEdDm/dBfNbTG+moS5Sh/n9fbu+vD/8vH9/Pfx///
+9fr4//3//Pv4+fSSTxvGgAbOlV6bSwDKoW2wdlC6bRPLo3DElEqyPwjbcwDOpCuzNwDWgUDpdD7Un22yeln7/+71//368"

How to convert it to .jpg file?

The string is base64.

Answer 1

string base64string = "iVBORw0KGgoAAAANSUhEUgAAAHgAAAA3CAMAAADwtH5ZAAADAFBMVEX//////P///v/+///3/f3//f+zoJL3///15/SK";  // Put the full string here
byte[] blob = Convert.FromBase64String(base64string);
File.WriteAllBytes(@"C:\Users\user\Desktop\fic.jpg", blob);