We had someone ask yesterday how they can include multiple pdf's in one order, and have them bound separately. It's a very reasonable question that comes up from time to time. We thought we would post the answer here for reference.
The short answer right now from us is just to keep it simple. One Job=One File.
The long answer is that the site was originally designed to print large manuals, where most jobs would be large enough to be worth it to pay at least the minimum to print a job with us.
We later added the capability to allow multiple copies. That was pretty easy to do without adding much complexity. One Job = (still) One File. Now we just vary how many of that same file. In this case, the same download and the same machine programming exist for the same job, plus it's the same binding comb. We have lots of box sizes, so that's not a problem either.
But, it gets trickier if multiple files come in for the same order. We suddenly have an undetermined amount of files, different programming instructions, and binding sizes- for each job. That's alot of extra handling to try to work into the system, and for the minimum price.
Hopefully with your continued support, we can further automate this process in the future and consider adding a multiple file feature. It's possible, and something we will consider tackling in the future.
But for now, keeping it simple for us means we can keep the costs down for you.