Combined files automatically re-organized by Bates number?

Question

I have a folder containing 1,373 PDF files, comprising what I think is approximately 7,400 pages. Each page was Bates stamped by a legal support company, but when they sent the CD containing said folder, all 1,373 files were organized by the file name, and not sequentially by Bates number.
Rather than opening 1,373 files and performing 1,373 searches for keywords that may identify privileged information, it would be much more efficient to have all the documents in several large files and only perform a few searches.
To get to my problem: When I combined the files, it seems that Adobe Acrobat X Pro automatically organized the files sequentially by Bates number. In order to be confident that we do not need to perform 1,373 searches using the separate files, we need to confirm that the Bates numbering from the combined files matches up with the number of pages. My question is, is it possible that Adobe automatically re-organized the files sequentially by Bates number?
Thank you for your help.

Answer 1

If you've already got the script to make the subdirectories then its not a huge step to add the code to move the files:
tell application "Finder"
  repeat with this_number from 65 to 90
    set this_letter to ASCII character this_number
    set new_folder to make folder at window 1 with properties {name: this_letter}
    move (every file of target of window 1 whose name begins with this_letter) to new_folder
  end repeat
end tell