java - covert text file to multiple pdf files based on a string -

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i have big text file, have 20,000 student's transcript data.i need create 1 pdf each student’s transcript (means 20,000 pdf) in text file. how can achieve this. appreciate ideas. thanks.

this new requirement, havn't start anything. checking possible ways achieve this. sample input text file have data below.
* student-name : test1;student # : 123456
subject : english marks : 100
subject : maths marks : 90
* student-name : test2;student # : 345678
subject : english marks : 100
subject : maths marks : 90
* student-name : test3;student # : 567859
subject : english marks : 100
subject : maths marks : 90
* student-name : test4;student # : 657656
subject : english marks : 100
subject : maths marks : 90

for above text file, requirement create seperate pdf each student transcirpt test1.pdf,test2.pdf,test3.pdf,test4.pdf


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