command line print file names to output file

Not much different than Linux.

dir *.pdf > fileyouwant.txt

If you only want the filenames, you can do that with

dir/b *.pdf > fileyouwant.txt

If you also want subdirs,

dir/s/b *.pdf > fileyouwant.txt

If you aren't in that directory to start with

dir/s/b C:\Path\*.pdf > fileyouwant.txt

http://stackoverflow.com/questions/4515510/command-line-print-file-names-to-output-file