I previously had success with PDFtk:
https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/

On Mon, Feb 4, 2019 at 12:36 PM Faust, Brad <[log in to unmask]> wrote:

> Hello,
>
> We have a project where we need to combine individual pages of PDF, JPG,
> and TIFF files into single documents.   We have several dozen folders and
> 100s of documents to process.  The page files are named sequentially and
> all the pages for each document are in there own folder.
>
> We have found and tested the program "PDF Combine Pro" which does the task
> very well, but we have been unable to successfully purchase a license.
>
> Is anyone aware of another program that will do this work?     Thanks.
>
> Brad.
>
>
> ------------------------------------------------------------------------
> Bradley D. Faust, M.L.S.
> University Libraries
> Assistant Dean for Library Data and Discovery Solutions
> Ball State University
> Muncie, IN  47306
> v:  765 285-8032
>
> http://www.bsu.edu/library
> [New Benny Logo with UL 05]
>
>