Military can use whatever, they're not too worried about you. It's impossible to falsify the fact that you were a military pilot...they are going to pull a copy of your DD214 from the government which will verify your military pilot status.
For the civilians...
Once you are established in your career you can use e-logbook printouts, but employers will always want to see your original book with all of your training endorsements...make sure you bring that. It increases an employer's comfort level that you are who you say you are, and that your history is true.