Stapling multiple files in 1 pdf file while printing with the creator

Hello, do you have any suggestions for getting the files to stay in the original sequence during merging?

The label software I use outputs multiple unique pages as individual jobs in the print spool. I know it outputs them in the correct order, because they come out that way on a physical printer. The problem is, they end up in random order in the PDF.

I had one last week with 300 plus labels where it glitched and made a couple duplicate pages. The warehouse had no choice but to pick through them to find the dupes. Even if it had kept the correct numbers of pages, the random sequence makes things far more difficult than necessary.

On the merge screen they all appear by the same name so I have no way of manually arranging them there, either.

Other than this issue, this is by far the best PDF printer program I’ve used.

Thank you.