Hi cacapee, Awesome job!
I just got done complaining about PDF support on Engadget and decided to come back and check things out. I tried PDFLRF and it's so awesome that I can't wait to convert all my pdf files. I cannot wait! so I rushed to create a little Windows utility to provide a drag and drop batch interface. Hope you don't mind I just whip up something quickly so we can all jump on it while waiting for your GUI to complete.
My GUI wrapper for PDFLRF is just called PDFLRF_GUI and it can be found here:
http://www.carolchen.com/code/
(It's a rapid application so i will upload newer version whenever I get a chance to improve it. I know it's primitive but it gets some stuff done. comments welcome.)