Currently Being ModeratedAug 30, 2013 2:58 PM (in response to jimhaynes)
On your iMac, open iTunes. Choose "Books", then "PDFs" within books. Then drag your PDF(S) into that area.
The next time you sync your iPad and iPhone using iTunes, the PDFs should end up on your iOS devices. The way to access them there is to use the iBooks app. Open iBooks, click the "Books" button and choose "PDFs", and they should all appear.