I am trying Printable Postage for the first time on an order of 11 books for one member. I bought PBS money to cover the total I calculated, but it still says I don't have enough money in my account.

So - is the fee for Printable Postage per book or per order? If it is per book then I need to go buy more PBS money. If it is per order then I should have enough, so is there something else I need to do?

And, if it is per book, the Print Wrapper page should tell you how much the total will be so you don't have to guess at how much PBS money to buy.

Does that make sense? Anyone have some experience with this?

The fee is per transaction, not per book.  There is a 43 fee for the transaction and PBS gets a portion.   There is also 17 fee that goes to the Post Office for the Delivery confirmation. At least that's the way I understand it from reading in the FAQs on the printable postage.

I'm trying to remember when I last mailed more than one book at a time.  I think I was only charged the fees above on the transaction and not per book.