You've long been able to download a PDF that you can print and laboriously sign each page. (And a few months ago I added functionality that let you print incrementally, saving a bunch of work.)
But saving trees and avoiding hand cramps/carpal tunnel syndrome was hard because many people wouldn't accept a PDF file as having your attestation (even if you're the one giving it to them, which is kinda dumb, but hey...)
ANYHOW, on the PDF download screen, there is now an option to digitally attest to the accuracy/authenticity of the logbook PDF. It will collect a digital scribble from you (the primary point of which is not to have an ink-like scribble per se, but rather to meet AC-120-78B's requirements for intentionality and non-refutability), and instead of downloading a PDF, you'll download a zip file with 2 PDFs inside.
The first of those is the regular PDF you've always known and loved, but instead of "Signed by [your name]________" in the footer, it instead says "Signed by [your name][See accompanying attestation for validity notes]".
The second PDF is a digital attestation for the validity of the first PDF, and it includes your scribble and, importantly, the "SHA256" hash of that PDF. That's the cryptographic signature of the file that proves it's the one you signed. It also includes instructions for the recipient that they can use if they want to verify that the PDF file you sent them is the one that you digitally affirmed is true and correct and yours. Even the most minor edit or change to the PDF will change the hash, and if the hash values don't agree, then the attestation fails.
So you can send the two PDFs to a potential employer or insurance company or anyone else who requests your logbook, and they should (at least per AC-120-78B) accept it.
Hopefully this will result in less actual paper - and less strained wrists!
