Now I have organised my documents into folders, is it possible to email the complete folder instead of each document individually which can be very frustrating to both parties if there are 17 documents to sent!
I think you should open up iTunes on your computer. Click iPad in the Devices section on the left. Click the Apps tab. Scroll down to the File Sharing section at the bottom. Click on Adobe Reader and you'll see all your PDF files. Use the Save to... button to copy them to your computer. Then zip them up and either provide a link to them or (if very small) email them.
The Devices section only shows up when you have physically connected your iPad to your computer, or when both the computer and the iPad are connected on the same WiFi network.
You must connect the devices before you'll see that option.
Also, what version of iTunes do you have installed?
Europe, Middle East and Africa