How To: Just wanted my suggestion in the forum should someone google / search seeking to do the same thing I did... I searched and found nothing specific to my unique circumstances... I had a huge technical 400 meg pdf I needed on my company iPad. There were several hurdles blocking me from doing it the easy way... My corporate iPad is away from the computer I normally sync it with, so I could not just plug it in and move the documents over via iTunes / iBooks sync... My company iPad does not have the App Store on it, so installing GoodReader DropBox ect is out of the question. Opening or emailing the said PDF was too big for safari or email to handle to simply 'open in iBooks', so that wouldn't work either. Corporate iPad does not have AirDrop... I needed a work around... What I ended up doing was plugging the iPad into my personal MacBook Air that I had with me on the road. I used iExplorer to open the file structure on my company iPad. Click down to the Media, then Books folder... you'll see all the pdfs on your ipad listed here. They will have strange names with numbers and letters like "A11101AF980.PDF". Here's where there is a little bit of a gamble, you're going to overwrite one, but you dont know which, you may be able to ballpark it by file size ect. Simply dragging and dropping your PDF into the media / books folder on the ipad from the mac with iExplorer, won't populate it in iBooks on the iPad. I'm assuming this is because the plist would need to be edited, didnt have time for that. So you have to pick one of your existing PDF names in your iPad library (will look similar to "A110101AF980.PDF"). Name the PDF you want on your ipad that's on your mac to that exact same name. The gamble is you really dont know which existing PDF on your ipad you're overwriting. For me I was willing to take that chance, I needed this document on the iPad. copy (drag / drop) the newly named PDF over with iExplorer into Media > Books folder, allow it to 'replace' when prompted. Reboot iPad. go through your PDFs one at a time in iBooks until you find your new PDF, the name will be one of your former PDFs but the content will be the new pdf you moved over. clear as mud? this is a work around for those of you in a jam, who dont have the privilege of simply sync'ing it over, using the appstore, and are working with a corporate ipad thats mostly 'locked down'. good luck.