Converting folders into PDF files

Hi. I was wondering if it's possible to convert folders into PDF files with batch function?
So  i need to make a series of files into pdf. The files already separated by folders and i need to convert each folders into PDF files, for example:

folder 1 >  folder 1.pdf

folder 2 >  folder 2.pdf

folder 3 >  folder 3.pdf
etc.

I know the right-click-combine function, but i was wondering if there's a way to convert folders with batch? I would be very helpful, thank you in advance