i like know why would u encode in to a pdf only report that all it is supose be is a report on onthing

so why would any one encode java in to it unless there more to pdf then just a report to say if i type out and document has no java in it, how ever i found java code in number of goverment documents one being socal securty wich has no need to do this unless this code was to do more then just give u report on earning or other it has me woundering how many other gov documents also encode java and this cant be radom there has be a program writeing this not a person this has me woundering what being encidoed in such reports, also something odd is it looks more like encription then dose anything else, but say it is jave that just about 8x10 long in code how can one decode it now from what i seen here, now here odd thing is open it as pdf java code disapears only shows up if u open it with notepad, wich odd, java can be used for number things inclueing createating remote access and if no one crack above code i doute they crack what i got, i meen this comeing out socal secuty any one can print out pdf of earning open it note pad and try crack the code