Need to know if this is possible...

Question

It has been a while since I've worked in Java, so I'm not even sure what I'm wanting to do is possible. The basic principle behind what I'm trying to do is a print queue, here are the specifics:
1> Files in either PDF or .xlsx should be loaded into a folder called DailyPrint on a network drive. (We'll call it's path Z:\Invoices\Dailyprint)
2> at the end of the day someone in the office who is not tech savvy needs to be able to print 3 copies of every file in the folder.
3> The paper in the tray is loaded in the following color scheme : White, Yellow, Red (3 part invoice paper)
4> The print job needs to print out the files in the following order so that we get a white, yellow and red copy of each file: 0001.pdf (first copy); 0001.pdf (second copy); 0001.pdf (third copy); 0002.pdf (first copy); etc; etc.
5> The printer that these will print to is a network printer, not hooked to any particular station.
The following information is static, and would have no reason to let people change it:
The printer to be used
The paper tray to be used
The path to the Folder
The number of copies (hard coded to 3)
The order in which the files/copies are printed
I know that printing from PDFs has been called difficult in other discussions, and I know that I would probably have to use a DocFlavor line to make sure that it printed them correctly, but I need to know if what I am trying to do on this project is possible or if I'm going in a completely wrong direction. Any help would be appreciated.
Thank you in advance.

Answer 1

The biggest concern for us is the batch aspect, due to the fact this is not a dedicated printer, so it is better for us to tie it up for 20 minutes at the end of the day rather than constantly put 3-part paper into the printer for each invoice. We only have one computer with the full Adobe Acrobat, the rest have Microsoft's "Save as PDF" plug-in for Excel/Word, so we can make each file into a PDF but at the end of the day when we want to batch print all of the invoices for the day we could only come up with 3 possible senarios:
1> Stop producing invoices 1 hour before end of day, and have one user go into the "dailyprint" folder from the computer with Acrobat, compile all of the individual PDFs into one massive PDF and then do a group print of three copies.
2> Stop producing invoices 1 hour before end of day, separate the invoices into several groups and have the 3 people in our department (it's a very small office, I'm both the technical lead and an underwriting assistant.) print them out, doing three copies of each (and hoping that someone doesn't forget to change the "copies" setting to 3)
3> Write a program or find a program that would allow us to batch print 3 grouped copies of each file in the "dailyprint" folder.
Because I used to program a lot in Java I figured I would look into #3 and see if it would be a time saver or if option #1 would be better. I think our next biggest concern would be to make sure that it printed to the correct printer, which is why I was wondering about hardcoding the specific printer in the program. After looking through the Print Service API guide and seeing people's responses it does look like a program would be possible, but hard coding the printer, or even giving a drop down box to select which printer, is going to be the hard part of this whole thing.