The access permissions granted for this document.
Valid values are:
1 - No changes to the document are permitted; any change to the document invalidates the Signature.
2 - Permitted changes are filling in forms, instantiating page templates, and signing; other changes invalidate the Signature.
3 - Permitted changes are the same as for 2, as well as annotation creation, deletion, and modification; other changes invalidate the Signature....document invalidates the signature. 2 - Permitted changes are...other changes invalidate the signature. 3 - Permitted changes are...