Listen, don't beat around the bush. Your best bet is either Watermark On Pdf Pro 10 or 11. You can get it as a download on Amazon for under $100 dollars. The next best option would be Coral PDF Fusion which you can also get on Amazon as well as other locations. These two are a lot better than the other stuff out there and t are both worth the money. I like and use both of them all the time and I don't know what I would do without them!
If you are on my mailing list and want more info on a new tutorial on Adobe Acrobat, email me at jb3108gmail.com. Here is another tutorial from the same author: The Perfect Way To Create A PDF Cover.