Defines all available permissions.
It is possible to use an array of permission symbols instead of an integer to describe the permission set. The used symbols are the lower case versions of the constants, i.e. the symbol for MODIFY_CONSTANT would be :modify_constant.
See: PDF1.7 s18.104.22.168
Assembling of the document (inserting, rotating or deleting of pages and creation of bookmarks or thumbnail images)
Copying of content
Filling in form fields
High quality printing
Maps a permission value to its symbol
Printing (if HIGH_QUALITY_PRINT is also set, then high quality printing is allowed)
Reserved permission bits
Maps permission symbols to their respective value