To send an image to a webservices, should I encode it to Base64? [closed]

I think you are referring to how to send the byte array of an image in a Web Service, to send it, having the byte array, as you mention you have to code it to Base64 in this way:

String miImagen = Base64.encodeToString(byteArray, Base64.DEFAULT);

miImagen would be the value you would send in the WebService.

You can use MTOM (from Java 6) JAX-WS MTOM , or as a string in base 64, as Elenasys says.