Any PDF driver will do that for you; such a driver installs as if it were a
printer and, when you elect to print a report, you simply select the PDF
driver.
I use a driver named PDF995 (http://www.pdf995.com); however, you can do a
search at Google on PDF drivers and find many from which to select.
Believe you're going to have to go to a third-party add-in to automate this
for multiple files. I use the ACG Soft PDF and Mail Class Library - http://ourworld.compuserve.com/homepages/attac-cg and have found that it
works extremely well.