They did not hire or spin up a new team just for manual distribution, they loaded existing employees with the task of doing this. basically all they need is a simple script that a high school student can write to take the files and send them where they need to go (website, registered owners by pulling email address or account info from their database). literally a 5 minute to a half hour job each time they run the process. theoretically, just once a year. any revisions to the manual would be a simple replace manual.pdf with manual_rev2.pdf. I would imagine that there are only a few revisions a year in the manuals. and I would also wager that the manuals do not change much from year to year either as most manufactures use the same bodystyle with a few minor mechanical and cosmetics through the run. 93 through 97 Rangers probably don't have but a few pages that are different. Huge savings there, they can insert and delete pages very easily to update to the next years model.