Several options are available :
The choice of the month is free in relation to the past period :
Simply scroll down the list of past months and make your choice. If you need a range of months, choose the first month, put a tick in To month and choose the last month of the range :
If you want everything, just check All periods.
The payslips are printed in the language that has been defined in the employee management. If it is necessary to print in another language, it is possible to force the language of printing
You can generate pdf files directly by clicking on the button 
and will be given the choice of a single global file or one file per person :
Just select the target directory and the file(s) name(s).