Acrobat Pro only edits one at a time. (You can use Batch Processing, but it only works to give them all the same metadata, which is pretty useless for title & author.)
For editing swarms of PDFs, I use
Arts PDF Workshop, which is a plugin for MS Excel. However, they no longer sell it separately (they used to), and the version I have works on Excel 97 but not Excel 2000 or 2003. (Presumably, the new package deal does.) But it's very pricey for editing a few (i.e. less than several thousand) PDFs.
There's an older post at
PlanetPDF that says Photoshop has a way to batch edit PDF metadata; I'll have to try that one. (It may be just another way to put the same metadata in a cluster of files, not useful for naming individual files.)
VeryPDF has a program that looks possible. $38, with a free 30 day trial.