This can be done with scripting if you have the Advanced Automation license for Core. You will have to download and install Ghostscript on the FreeFlow Core server first. Note the version # of ghostscript AND the installation path (you will need to update the .bat file scripts with the installation path so it knows WHERE to access the ghostscript application.
I have attached documentation and workflows for this that you can import and use. (Ghostscript not included)
You can using Preflight module to convert your PDF files to Images with Freeflow Core.
I have hundreds of multipage pdf documents that I would like to save as jpg files. I know I can convert them individually but if anyone knows a program that could do this for me automatically that would be great