How can I disable the screenshot sound on iPad?
If your device is jailbroken you can rename the sound file.

mv /System/Library/Audio/UISounds/photoShutter.caf /System/Library/Audio/UISounds/photoShutter-off.caf


Note:


The file will be restored on an iOS update.
The same file is used for the camera shutter sound, so renaming it will remove the sound from the camera shutter.