I just checked my folder that has my ipad backup files because I noticed by hard drive space has rapidly been depleting over the last week or so. My backup files com in at 22gb, is that normal?
The thing about the back-up is that it keeps adding to the file, so if you deleted all of your notes from GoodReader, your back-up file will still be 22gb. But if you then add 2 more gigs of notes, your file will increase to 24gb.
The best way to reduce the file size is to Delete the back-up and clean out your iPad from unwanted data, then back-up again.
Can you post a screenshot of Capacity Usage of your iPad.
Earlier today I had about 1.8gb of 'Other Data' on my iPad, so I did a Complete Restore from a Back-up, and then I re-synced all of my Apps/Media back and this time I only had 500mb of 'Other', not sure why that is, but I cleared about 1gb space doing this. (All of my previous app data is still their, I didn't loose anything)