t absolutely depends on how much information you put on there - you can define lots of different things and you may have 80 pages worth of what you want to happen in different events. You would be foolish to accept an email copy of an LPA because when it has been registered it is sealed by opg office, therefore if you don't see the actual doc, you have no way of knowing if it's been registered or not
is it an embossed seal? I had to email the notarised copy of my probate document to the USA and I rubbed a little pencil shaving over the seal so that it could be seen on a scan.....but I had okay'd this with the person I was sending it to first. It was all a bit odd, I had funds to claim in the US and had to comply with their rules which were made for dealing with US citizens....so I had to send them a scan of my photo ID driving licence to prove who I was even though they had never seen me and were never likely to.
Take a the original document plus a copy to a high court and ask them to check they are the same. They are able to stamp the copy document certifying it is a true copy of the original. Send the certified copy to the USA.....it should be sufficient to satisfy them.