email to upload documents

Good Day Sir,
I am a Ghanaian with a Brasilian residence and with a Ghanaian wife too, we would like to visit Hong Kong for a tour but my wife doesn't work at this moment, and I manage a registered small scale business can I sponsor my wife? And the most important thing we would like to know is, apart From posting our documents, is there any means of scanning and uploading the documents too? thanks a lot .