You probably don't want every photo in your "Pictures" folder synchronised to the iPad. I have an "iPad sync" folder which I copy photo's in to which I specifically want synchronised. In reality I don't usually copy them, I actually batch them to a smaller (2000 pix wide for example) size to the iPad sync folder.
You'll find that iTunes will create a "cache" folder which is a resized copy of the photo's it will sync ready for it to transfer to the iPad. You can ignore this, but it helps to know it exists as it can explain where some disk space goes.
Leon, if the images are transferred to the ipad via the Apple camera connection kit, or I assume taken with the iPad, they can be deleted on the ipad, independant of itunes. similarly if images have been downloaded, they can also be deleted on the iPad. If you press the arrow at the top right you'll be presented with options which include a selective delete which will work on all images except those transferred in using ITunes.
If you haven't already got one the camera connection kit is a must, simply connect the usb from your DSLR to the ipad and the ipad will invite you to transfer the images, with or without deleting from the camera. The camera adapter also works a treat for sharing images between idevices. Saves stuffing around with iTunes. http://store.apple.com/au/product/MC...connection-kit
