let see how far this will go. i have subscribed to jp online. here are the steps to see if you can download it to your computer.
goto zinio.com
click my library button
log in - rbrote@ymail.com
password - share
should show issue
click download again button gray circle w/arrow
will ask if you downloaded reader click no and install
after you install it will ask you to login again do so and then download starts and saves to your computer.
not sure if there is a limit to the downloads so we will test it out
good luck. if it works then i will post when new issue is out.