According to their post if you sign in the wallet with the master, it will allow you download a PDF of all your keys.

Those users who are inputting their Master Password for everything will now get a warning that informs them when they are attempting to sign in with the incorrect key or password, and gently guides them toward either getting the weakest key (the posting key) or downloading a PDF backup of all their keys.

https://steemit.com/steem/@steemitblog/social-condenser-is-live