Merge PDF files based on similar filenames

[gazza110]

Hello,

Does anybody know a way (perhaps using JavaScript) to merge PDFs together based on their filename?

I have created several PDF files (extracting from a large file) with student timetable on it and named the files with their student ID and page number (some are 2 pages and some are only one page):

012345 - page1.pdf
012345 - page2.pdf
011112 - page1.pdf
022223 - page1.pdf
022223 - page2.pdf

I need to merge the files together based on the filename, i.e.

012345 - page1.pdf
012345 - page2.pdf

MERGED into a single file (based on the first 6 characters of the filename).

There is over a 1000 files therefore would take a long time to do manually.

Any ideas (I am sure this can be done using the JavaScript Console however I am not sure how).

Thanks,
Gary