Tracking the use of a PDF

adobe acrobat xi

i writing pdf form on character sheet table top game, , 1 of aspects random stat generator.  although useful feature, many players , storytellers believe these type of features can abused.  player can mash roll button until have idealistic numbers. 

 

i thought of limiting roll button 1 use players can reset form, necessary if reuse in future.

so have written calc display message reads "this characters stats rejected , re-rolled x times."  based on number of times press button.  problem not stop them resetting form after each roll, or closing pdf , restarting fresh.

 

most players , storytellers content random generator if there way track it's use. 

 

i need way display number of times pdf has been reset & opened in course of 1 day.

 

one day should enough because if determined enough attempt re-roll every day deserve cheat, , character generation date reflect anyway.

 

some simple code examples appreciated.  new javascript , vocabulary , context not great.  know how simple cals, , apply basic scripts fields & objects have yet learn many of higher functions , commands.

where want track from? online server? if not, there's no difference between , other solution. way can see locally persistent global variable, require user change settings in acrobat/reader, , possibly install local script on machines.

maybe better solution create algorithm not allow "perfect" result has cap.

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