You can set here these PDF permissions:
|•||Allow printing - if unchecked then printing is not possible without knowledge of the Owner Password. If the printing is enabled and you use 128-bit encryption, then you can check also the 'low resolution printing only' option.|
|•||Allow modification - if unchecked then modification is not possible (as above).|
|•||Allow extraction - if unchecked then data extraction is not possible (as above).|
|•||Allow annotation - if unchecked then annotation is not possible (as above).|
Please note that the additional viewing permission is set by the User Password.